| 
                 
                    Closing price on 1/18/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.60 | 
                 
                
                    | High | 
                    17.60 | 
                 
                
                    | Low | 
                    17.30 | 
                     
                
                    | Volume | 
                    3,100 | 
                                 
                
                    | Split-adjusted Price | 
                    9.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/18/2011
             | 
            
                -0.30 / -1.70%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                9.68
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2011
             | 
            
                +0.10 / +0.57%
             |             
            
                17.50
             |           
            
                17.60
             |               
            
                17.40
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                9.85
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2011
             | 
            
                -0.10 / -0.57%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                9.79
             |                                 
            
                7,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2011
             | 
            
                +0.60 / +3.53%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                9.85
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2011
             | 
            
                -0.30 / -1.73%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                9.51
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2011
             | 
            
                -0.10 / -0.57%
             |             
            
                17.30
             |           
            
                17.30
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                9.68
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2011
             | 
            
                -0.10 / -0.57%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                9.73
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                9.79
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                9.79
             |                                 
            
                4,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2011
             | 
            
                -0.20 / -1.13%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                9.79
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2011
             | 
            
                -0.10 / -0.56%
             |             
            
                17.60
             |           
            
                17.70
             |               
            
                17.60
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                9.90
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/31/2010
             | 
            
                +0.10 / +0.56%
             |             
            
                18.30
             |           
            
                18.30
             |               
            
                17.30
             |                           
            
                17.80
             | 
            
                17.80
             |                     
            
                9.96
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2010
             | 
            
                -0.30 / -1.67%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                9.90
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2010
             | 
            
                -0.20 / -1.10%
             |             
            
                17.30
             |           
            
                18.00
             |               
            
                17.30
             |                           
            
                18.00
             | 
            
                18.00
             |                     
            
                10.07
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2010
             | 
            
                +0.60 / +3.41%
             |             
            
                18.30
             |           
            
                18.30
             |               
            
                17.60
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                10.18
             |                                 
            
                5,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2010
             | 
            
                +0.40 / +2.33%
             |             
            
                18.40
             |           
            
                18.40
             |               
            
                17.40
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                9.85
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2010
             | 
            
                0.00 / 0.00%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                9.62
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2010
             | 
            
                -1.00 / -5.49%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                9.62
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2010
             | 
            
                0.00 / 0.00%
             |             
            
                16.40
             |           
            
                18.20
             |               
            
                16.40
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                10.18
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2010
             | 
            
                +1.00 / +5.81%
             |             
            
                17.00
             |           
            
                18.20
             |               
            
                16.90
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                10.18
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2010
             | 
            
                -1.20 / -6.52%
             |             
            
                16.80
             |           
            
                17.50
             |               
            
                16.80
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                9.62
             |                                 
            
                11,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2010
             | 
            
                +1.30 / +7.60%
             |             
            
                18.00
             |           
            
                18.40
             |               
            
                17.70
             |                           
            
                18.40
             | 
            
                18.40
             |                     
            
                10.29
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2010
             | 
            
                -0.90 / -5.00%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                17.10
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                9.57
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2010
             | 
            
                0.00 / 0.00%
             |             
            
                17.10
             |           
            
                19.20
             |               
            
                17.10
             |                           
            
                18.00
             | 
            
                18.00
             |                     
            
                10.07
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2010
             | 
            
                -0.50 / -2.70%
             |             
            
                17.30
             |           
            
                19.40
             |               
            
                17.30
             |                           
            
                18.00
             | 
            
                18.00
             |                     
            
                10.07
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2010
             | 
            
                +1.00 / +5.71%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.40
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                10.35
             |                                 
            
                12,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/10/2010
             | 
            
                +0.70 / +4.17%
             |             
            
                16.80
             |           
            
                17.50
             |               
            
                16.80
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                9.79
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2010
             | 
            
                0.00 / 0.00%
             |             
            
                16.40
             |           
            
                16.80
             |               
            
                16.30
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                9.40
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2010
             | 
            
                -0.90 / -5.08%
             |             
            
                17.70
             |           
            
                17.80
             |               
            
                16.80
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                9.40
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2010
             | 
            
                -0.10 / -0.56%
             |             
            
                18.30
             |           
            
                18.30
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                9.90
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |