| 
                 
                    Closing price on 11/6/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    42.00 | 
                 
                
                    | High | 
                    42.00 | 
                 
                
                    | Low | 
                    38.60 | 
                     
                
                    | Volume | 
                    205,300 | 
                                 
                
                    | Split-adjusted Price | 
                    3.48 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DBC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/6/2009
             | 
            
                -1.60 / -3.97%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                38.60
             |                           
            
                38.70
             | 
            
                40.13
             |                     
            
                3.48
             |                                 
            
                205,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2009
             | 
            
                +2.10 / +5.50%
             |             
            
                39.00
             |           
            
                40.30
             |               
            
                38.50
             |                           
            
                40.30
             | 
            
                39.62
             |                     
            
                3.63
             |                                 
            
                308,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2009
             | 
            
                +0.20 / +0.53%
             |             
            
                38.00
             |           
            
                39.50
             |               
            
                37.00
             |                           
            
                38.20
             | 
            
                38.00
             |                     
            
                3.44
             |                                 
            
                262,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2009
             | 
            
                -0.90 / -2.31%
             |             
            
                38.30
             |           
            
                40.00
             |               
            
                36.40
             |                           
            
                38.00
             | 
            
                37.55
             |                     
            
                3.42
             |                                 
            
                272,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2009
             | 
            
                -3.30 / -7.82%
             |             
            
                39.00
             |           
            
                40.50
             |               
            
                38.90
             |                           
            
                38.90
             | 
            
                38.99
             |                     
            
                3.50
             |                                 
            
                359,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2009
             | 
            
                +1.40 / +3.43%
             |             
            
                42.70
             |           
            
                42.80
             |               
            
                40.50
             |                           
            
                42.20
             | 
            
                41.77
             |                     
            
                3.80
             |                                 
            
                382,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2009
             | 
            
                -1.90 / -4.45%
             |             
            
                41.00
             |           
            
                42.00
             |               
            
                40.00
             |                           
            
                40.80
             | 
            
                40.23
             |                     
            
                3.67
             |                                 
            
                581,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2009
             | 
            
                +0.50 / +1.18%
             |             
            
                41.00
             |           
            
                44.30
             |               
            
                41.00
             |                           
            
                42.70
             | 
            
                43.04
             |                     
            
                3.84
             |                                 
            
                388,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2009
             | 
            
                -2.30 / -5.17%
             |             
            
                42.30
             |           
            
                44.00
             |               
            
                42.20
             |                           
            
                42.20
             | 
            
                42.27
             |                     
            
                3.80
             |                                 
            
                1,262,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2009
             | 
            
                -3.00 / -6.32%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                44.50
             |                           
            
                44.50
             | 
            
                45.30
             |                     
            
                4.01
             |                                 
            
                425,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2009
             | 
            
                -0.90 / -1.86%
             |             
            
                50.00
             |           
            
                50.50
             |               
            
                45.00
             |                           
            
                47.50
             | 
            
                48.85
             |                     
            
                4.19
             |                                 
            
                875,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2009
             | 
            
                +2.70 / +5.91%
             |             
            
                48.30
             |           
            
                48.40
             |               
            
                46.90
             |                           
            
                48.40
             | 
            
                47.91
             |                     
            
                4.27
             |                                 
            
                1,073,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2009
             | 
            
                +2.50 / +5.79%
             |             
            
                44.00
             |           
            
                45.70
             |               
            
                43.00
             |                           
            
                45.70
             | 
            
                45.33
             |                     
            
                4.03
             |                                 
            
                1,042,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2009
             | 
            
                +0.30 / +0.70%
             |             
            
                43.00
             |           
            
                44.00
             |               
            
                42.50
             |                           
            
                43.20
             | 
            
                42.85
             |                     
            
                3.81
             |                                 
            
                735,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2009
             | 
            
                0.00 / 0.00%
             |             
            
                42.50
             |           
            
                42.90
             |               
            
                41.60
             |                           
            
                42.90
             | 
            
                42.48
             |                     
            
                3.78
             |                                 
            
                686,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2009
             | 
            
                -1.00 / -2.28%
             |             
            
                43.90
             |           
            
                43.90
             |               
            
                42.30
             |                           
            
                42.90
             | 
            
                42.80
             |                     
            
                3.78
             |                                 
            
                436,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2009
             | 
            
                -0.20 / -0.45%
             |             
            
                44.50
             |           
            
                46.20
             |               
            
                43.30
             |                           
            
                43.90
             | 
            
                44.08
             |                     
            
                3.87
             |                                 
            
                732,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2009
             | 
            
                -0.90 / -2.00%
             |             
            
                44.90
             |           
            
                44.90
             |               
            
                42.00
             |                           
            
                44.10
             | 
            
                43.26
             |                     
            
                3.89
             |                                 
            
                697,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2009
             | 
            
                +1.50 / +3.45%
             |             
            
                46.50
             |           
            
                46.50
             |               
            
                43.50
             |                           
            
                45.00
             | 
            
                45.07
             |                     
            
                3.97
             |                                 
            
                903,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2009
             | 
            
                +2.60 / +6.36%
             |             
            
                43.50
             |           
            
                43.50
             |               
            
                43.00
             |                           
            
                43.50
             | 
            
                43.47
             |                     
            
                3.84
             |                                 
            
                628,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2009
             | 
            
                +2.20 / +5.68%
             |             
            
                38.50
             |           
            
                40.90
             |               
            
                38.50
             |                           
            
                40.90
             | 
            
                40.67
             |                     
            
                3.61
             |                                 
            
                787,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2009
             | 
            
                +0.50 / +1.31%
             |             
            
                38.10
             |           
            
                38.90
             |               
            
                37.90
             |                           
            
                38.70
             | 
            
                38.27
             |                     
            
                3.41
             |                                 
            
                275,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2009
             | 
            
                +0.20 / +0.53%
             |             
            
                37.80
             |           
            
                38.50
             |               
            
                37.80
             |                           
            
                38.20
             | 
            
                38.07
             |                     
            
                3.37
             |                                 
            
                711,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2009
             | 
            
                +0.20 / +0.53%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                37.60
             |                           
            
                38.00
             | 
            
                37.90
             |                     
            
                3.35
             |                                 
            
                342,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2009
             | 
            
                -1.20 / -3.08%
             |             
            
                39.90
             |           
            
                39.90
             |               
            
                37.50
             |                           
            
                37.80
             | 
            
                38.24
             |                     
            
                3.33
             |                                 
            
                319,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2009
             | 
            
                +0.60 / +1.56%
             |             
            
                38.00
             |           
            
                40.00
             |               
            
                36.30
             |                           
            
                39.00
             | 
            
                37.81
             |                     
            
                3.44
             |                                 
            
                780,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2009
             | 
            
                +0.70 / +1.86%
             |             
            
                38.00
             |           
            
                39.50
             |               
            
                37.20
             |                           
            
                38.40
             | 
            
                38.38
             |                     
            
                3.39
             |                                 
            
                715,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2009
             | 
            
                -1.50 / -3.83%
             |             
            
                39.00
             |           
            
                39.30
             |               
            
                37.70
             |                           
            
                37.70
             | 
            
                38.18
             |                     
            
                3.32
             |                                 
            
                273,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2009
             | 
            
                +0.60 / +1.55%
             |             
            
                39.00
             |           
            
                39.80
             |               
            
                38.70
             |                           
            
                39.20
             | 
            
                39.27
             |                     
            
                3.46
             |                                 
            
                944,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2009
             | 
            
                -0.10 / -0.26%
             |             
            
                38.50
             |           
            
                39.00
             |               
            
                38.20
             |                           
            
                38.60
             | 
            
                38.53
             |                     
            
                3.40
             |                                 
            
                669,500
             |  
            
                 
             |                                                              
             
    
         
    
    
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