| 
                 
                    Closing price on 8/11/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    31.00 | 
                 
                
                    | High | 
                    31.00 | 
                 
                
                    | Low | 
                    30.00 | 
                     
                
                    | Volume | 
                    198,000 | 
                                 
                
                    | Split-adjusted Price | 
                    2.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DBC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/11/2009
             | 
            
                -0.30 / -0.96%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                30.90
             | 
            
                30.80
             |                     
            
                2.72
             |                                 
            
                198,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2009
             | 
            
                +1.00 / +3.31%
             |             
            
                30.70
             |           
            
                31.40
             |               
            
                30.50
             |                           
            
                31.20
             | 
            
                30.94
             |                     
            
                2.75
             |                                 
            
                307,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2009
             | 
            
                +0.30 / +1.00%
             |             
            
                29.70
             |           
            
                30.50
             |               
            
                29.50
             |                           
            
                30.20
             | 
            
                30.12
             |                     
            
                2.66
             |                                 
            
                308,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2009
             | 
            
                -0.10 / -0.33%
             |             
            
                30.00
             |           
            
                31.00
             |               
            
                29.50
             |                           
            
                29.90
             | 
            
                30.21
             |                     
            
                2.64
             |                                 
            
                492,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2009
             | 
            
                +1.50 / +5.26%
             |             
            
                28.50
             |           
            
                30.10
             |               
            
                28.50
             |                           
            
                30.00
             | 
            
                29.44
             |                     
            
                2.65
             |                                 
            
                386,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2009
             | 
            
                0.00 / 0.00%
             |             
            
                29.90
             |           
            
                29.90
             |               
            
                28.40
             |                           
            
                28.50
             | 
            
                28.66
             |                     
            
                2.51
             |                                 
            
                230,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2009
             | 
            
                -0.20 / -0.70%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.20
             |                           
            
                28.50
             | 
            
                28.55
             |                     
            
                2.51
             |                                 
            
                206,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2009
             | 
            
                +0.60 / +2.14%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.00
             |                           
            
                28.70
             | 
            
                28.63
             |                     
            
                2.53
             |                                 
            
                238,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2009
             | 
            
                -0.40 / -1.40%
             |             
            
                28.00
             |           
            
                28.40
             |               
            
                27.60
             |                           
            
                28.10
             | 
            
                28.00
             |                     
            
                2.48
             |                                 
            
                164,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2009
             | 
            
                -0.10 / -0.35%
             |             
            
                29.00
             |           
            
                29.50
             |               
            
                28.00
             |                           
            
                28.50
             | 
            
                28.87
             |                     
            
                2.51
             |                                 
            
                236,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2009
             | 
            
                -1.40 / -4.67%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                28.20
             |                           
            
                28.60
             | 
            
                29.00
             |                     
            
                2.52
             |                                 
            
                373,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2009
             | 
            
                +0.60 / +2.04%
             |             
            
                31.30
             |           
            
                31.40
             |               
            
                28.50
             |                           
            
                30.00
             | 
            
                30.28
             |                     
            
                2.65
             |                                 
            
                400,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2009
             | 
            
                +1.60 / +5.76%
             |             
            
                29.20
             |           
            
                29.40
             |               
            
                29.20
             |                           
            
                29.40
             | 
            
                29.40
             |                     
            
                2.59
             |                                 
            
                308,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2009
             | 
            
                +1.60 / +6.11%
             |             
            
                25.80
             |           
            
                28.00
             |               
            
                25.50
             |                           
            
                27.80
             | 
            
                27.46
             |                     
            
                2.45
             |                                 
            
                288,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2009
             | 
            
                +0.30 / +1.16%
             |             
            
                26.50
             |           
            
                27.00
             |               
            
                25.80
             |                           
            
                26.20
             | 
            
                26.16
             |                     
            
                2.31
             |                                 
            
                152,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2009
             | 
            
                +0.50 / +1.97%
             |             
            
                26.00
             |           
            
                26.50
             |               
            
                25.50
             |                           
            
                25.90
             | 
            
                25.89
             |                     
            
                2.28
             |                                 
            
                188,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2009
             | 
            
                -1.00 / -3.79%
             |             
            
                26.30
             |           
            
                27.00
             |               
            
                25.00
             |                           
            
                25.40
             | 
            
                25.35
             |                     
            
                2.24
             |                                 
            
                185,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2009
             | 
            
                -0.60 / -2.22%
             |             
            
                27.10
             |           
            
                27.10
             |               
            
                26.20
             |                           
            
                26.40
             | 
            
                26.64
             |                     
            
                2.33
             |                                 
            
                266,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2009
             | 
            
                +0.50 / +1.89%
             |             
            
                27.10
             |           
            
                28.00
             |               
            
                26.50
             |                           
            
                27.00
             | 
            
                27.07
             |                     
            
                2.38
             |                                 
            
                174,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2009
             | 
            
                +0.20 / +0.76%
             |             
            
                26.30
             |           
            
                27.30
             |               
            
                26.20
             |                           
            
                26.50
             | 
            
                26.48
             |                     
            
                2.34
             |                                 
            
                117,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2009
             | 
            
                +0.40 / +1.54%
             |             
            
                27.90
             |           
            
                27.90
             |               
            
                25.50
             |                           
            
                26.30
             | 
            
                26.29
             |                     
            
                2.32
             |                                 
            
                372,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2009
             | 
            
                -1.20 / -4.43%
             |             
            
                27.30
             |           
            
                27.30
             |               
            
                25.50
             |                           
            
                25.90
             | 
            
                26.06
             |                     
            
                2.28
             |                                 
            
                171,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2009
             | 
            
                -0.80 / -2.87%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                26.60
             |                           
            
                27.10
             | 
            
                26.95
             |                     
            
                2.39
             |                                 
            
                190,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2009
             | 
            
                -0.20 / -0.71%
             |             
            
                27.90
             |           
            
                28.40
             |               
            
                27.70
             |                           
            
                27.90
             | 
            
                27.99
             |                     
            
                2.46
             |                                 
            
                228,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2009
             | 
            
                -0.50 / -1.75%
             |             
            
                27.60
             |           
            
                28.50
             |               
            
                27.30
             |                           
            
                28.10
             | 
            
                27.97
             |                     
            
                2.48
             |                                 
            
                147,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2009
             | 
            
                +0.10 / +0.35%
             |             
            
                29.90
             |           
            
                30.00
             |               
            
                28.10
             |                           
            
                28.60
             | 
            
                28.99
             |                     
            
                2.52
             |                                 
            
                547,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2009
             | 
            
                +1.20 / +4.40%
             |             
            
                28.50
             |           
            
                28.50
             |               
            
                27.40
             |                           
            
                28.50
             | 
            
                28.38
             |                     
            
                2.51
             |                                 
            
                325,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2009
             | 
            
                +1.30 / +5.00%
             |             
            
                25.70
             |           
            
                27.30
             |               
            
                25.00
             |                           
            
                27.30
             | 
            
                26.71
             |                     
            
                2.41
             |                                 
            
                383,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2009
             | 
            
                +1.40 / +5.69%
             |             
            
                25.50
             |           
            
                26.00
             |               
            
                24.40
             |                           
            
                26.00
             | 
            
                25.60
             |                     
            
                2.29
             |                                 
            
                380,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2009
             | 
            
                -1.00 / -3.91%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.20
             |                           
            
                24.60
             | 
            
                24.33
             |                     
            
                2.17
             |                                 
            
                458,100
             |  
            
                 
             |                                                              
             
    
         
    
    
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