| 
                 
                    Closing price on 1/28/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    32.00 | 
                 
                
                    | High | 
                    32.00 | 
                 
                
                    | Low | 
                    31.20 | 
                     
                
                    | Volume | 
                    72,000 | 
                                 
                
                    | Split-adjusted Price | 
                    2.88 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DBC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/28/2010
             | 
            
                -0.30 / -0.94%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.20
             |                           
            
                31.50
             | 
            
                31.54
             |                     
            
                2.88
             |                                 
            
                72,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2010
             | 
            
                -1.70 / -5.07%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                31.50
             |                           
            
                31.80
             | 
            
                31.98
             |                     
            
                2.90
             |                                 
            
                39,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2010
             | 
            
                +1.40 / +4.36%
             |             
            
                32.40
             |           
            
                33.50
             |               
            
                32.40
             |                           
            
                33.50
             | 
            
                33.00
             |                     
            
                3.06
             |                                 
            
                155,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2010
             | 
            
                -0.10 / -0.31%
             |             
            
                32.10
             |           
            
                32.20
             |               
            
                32.00
             |                           
            
                32.10
             | 
            
                32.09
             |                     
            
                2.93
             |                                 
            
                6,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2010
             | 
            
                +0.20 / +0.63%
             |             
            
                30.50
             |           
            
                32.90
             |               
            
                30.50
             |                           
            
                32.20
             | 
            
                32.05
             |                     
            
                2.94
             |                                 
            
                78,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2010
             | 
            
                -0.70 / -2.14%
             |             
            
                31.80
             |           
            
                32.10
             |               
            
                31.30
             |                           
            
                32.00
             | 
            
                31.79
             |                     
            
                2.92
             |                                 
            
                124,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2010
             | 
            
                -1.30 / -3.82%
             |             
            
                35.30
             |           
            
                35.30
             |               
            
                32.70
             |                           
            
                32.70
             | 
            
                33.30
             |                     
            
                2.99
             |                                 
            
                101,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2010
             | 
            
                +1.20 / +3.66%
             |             
            
                33.20
             |           
            
                34.20
             |               
            
                33.20
             |                           
            
                34.00
             | 
            
                33.81
             |                     
            
                3.10
             |                                 
            
                116,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2010
             | 
            
                -0.80 / -2.38%
             |             
            
                32.00
             |           
            
                33.70
             |               
            
                31.50
             |                           
            
                32.80
             | 
            
                32.55
             |                     
            
                3.00
             |                                 
            
                162,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2010
             | 
            
                -1.40 / -4.00%
             |             
            
                33.30
             |           
            
                34.00
             |               
            
                33.30
             |                           
            
                33.60
             | 
            
                33.71
             |                     
            
                3.07
             |                                 
            
                7,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2010
             | 
            
                +0.20 / +0.57%
             |             
            
                35.00
             |           
            
                35.40
             |               
            
                34.40
             |                           
            
                35.00
             | 
            
                34.89
             |                     
            
                3.20
             |                                 
            
                122,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2010
             | 
            
                +1.80 / +5.45%
             |             
            
                32.50
             |           
            
                35.80
             |               
            
                31.90
             |                           
            
                34.80
             | 
            
                33.11
             |                     
            
                3.18
             |                                 
            
                91,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2010
             | 
            
                -2.00 / -5.71%
             |             
            
                35.30
             |           
            
                35.30
             |               
            
                32.80
             |                           
            
                33.00
             | 
            
                33.56
             |                     
            
                3.01
             |                                 
            
                116,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2010
             | 
            
                -1.00 / -2.78%
             |             
            
                35.50
             |           
            
                37.00
             |               
            
                34.80
             |                           
            
                35.00
             | 
            
                35.24
             |                     
            
                3.20
             |                                 
            
                133,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2010
             | 
            
                +0.20 / +0.56%
             |             
            
                37.00
             |           
            
                37.50
             |               
            
                35.00
             |                           
            
                36.00
             | 
            
                36.25
             |                     
            
                3.29
             |                                 
            
                212,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2010
             | 
            
                -0.60 / -1.65%
             |             
            
                37.00
             |           
            
                37.00
             |               
            
                35.60
             |                           
            
                35.80
             | 
            
                35.94
             |                     
            
                3.27
             |                                 
            
                109,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2010
             | 
            
                -1.10 / -2.93%
             |             
            
                38.90
             |           
            
                38.90
             |               
            
                36.30
             |                           
            
                36.40
             | 
            
                37.21
             |                     
            
                3.32
             |                                 
            
                54,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2010
             | 
            
                +0.60 / +1.63%
             |             
            
                39.20
             |           
            
                39.20
             |               
            
                37.20
             |                           
            
                37.50
             | 
            
                38.83
             |                     
            
                3.42
             |                                 
            
                168,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2010
             | 
            
                +2.80 / +8.21%
             |             
            
                35.40
             |           
            
                36.90
             |               
            
                35.40
             |                           
            
                36.90
             | 
            
                36.70
             |                     
            
                3.37
             |                                 
            
                435,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/31/2009
             | 
            
                -0.60 / -1.73%
             |             
            
                34.90
             |           
            
                35.30
             |               
            
                34.10
             |                           
            
                34.10
             | 
            
                34.54
             |                     
            
                3.11
             |                                 
            
                110,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2009
             | 
            
                +1.10 / +3.27%
             |             
            
                34.70
             |           
            
                34.70
             |               
            
                33.60
             |                           
            
                34.70
             | 
            
                34.11
             |                     
            
                3.17
             |                                 
            
                44,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2009
             | 
            
                -0.80 / -2.33%
             |             
            
                34.00
             |           
            
                34.60
             |               
            
                33.40
             |                           
            
                33.60
             | 
            
                33.90
             |                     
            
                3.07
             |                                 
            
                66,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2009
             | 
            
                -0.90 / -2.55%
             |             
            
                34.50
             |           
            
                35.00
             |               
            
                34.00
             |                           
            
                34.40
             | 
            
                34.75
             |                     
            
                3.14
             |                                 
            
                76,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2009
             | 
            
                +1.30 / +3.82%
             |             
            
                33.80
             |           
            
                35.50
             |               
            
                33.80
             |                           
            
                35.30
             | 
            
                34.92
             |                     
            
                3.22
             |                                 
            
                136,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2009
             | 
            
                +0.60 / +1.80%
             |             
            
                31.00
             |           
            
                34.00
             |               
            
                31.00
             |                           
            
                34.00
             | 
            
                33.60
             |                     
            
                3.10
             |                                 
            
                97,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2009
             | 
            
                +0.40 / +1.21%
             |             
            
                33.00
             |           
            
                33.50
             |               
            
                32.50
             |                           
            
                33.40
             | 
            
                33.19
             |                     
            
                3.05
             |                                 
            
                63,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2009
             | 
            
                -0.40 / -1.20%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                32.80
             |                           
            
                33.00
             | 
            
                33.41
             |                     
            
                3.01
             |                                 
            
                85,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2009
             | 
            
                +2.00 / +6.37%
             |             
            
                32.50
             |           
            
                33.40
             |               
            
                32.00
             |                           
            
                33.40
             | 
            
                33.19
             |                     
            
                3.05
             |                                 
            
                149,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2009
             | 
            
                +1.40 / +4.67%
             |             
            
                30.50
             |           
            
                31.40
             |               
            
                30.50
             |                           
            
                31.40
             | 
            
                31.33
             |                     
            
                2.87
             |                                 
            
                124,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2009
             | 
            
                +0.50 / +1.69%
             |             
            
                29.00
             |           
            
                30.00
             |               
            
                28.60
             |                           
            
                30.00
             | 
            
                29.37
             |                     
            
                2.74
             |                                 
            
                56,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |