| 
                 
                    Closing price on 9/13/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    42.20 | 
                 
                
                    | High | 
                    43.90 | 
                 
                
                    | Low | 
                    41.80 | 
                     
                
                    | Volume | 
                    508,650 | 
                                 
                
                    | Split-adjusted Price | 
                    8.33 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DIG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/13/2010
             | 
            
                0.00 / 0.00%
             |             
            
                42.20
             |           
            
                43.90
             |               
            
                41.80
             |                           
            
                43.90
             | 
            
                43.90
             |                     
            
                8.33
             |                                 
            
                508,650
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2010
             | 
            
                -2.30 / -4.98%
             |             
            
                46.20
             |           
            
                46.20
             |               
            
                43.90
             |                           
            
                43.90
             | 
            
                43.90
             |                     
            
                8.33
             |                                 
            
                210,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2010
             | 
            
                +0.20 / +0.43%
             |             
            
                46.00
             |           
            
                46.80
             |               
            
                45.80
             |                           
            
                46.20
             | 
            
                46.20
             |                     
            
                8.77
             |                                 
            
                239,310
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2010
             | 
            
                -1.70 / -3.56%
             |             
            
                46.50
             |           
            
                47.00
             |               
            
                45.40
             |                           
            
                46.00
             | 
            
                46.00
             |                     
            
                8.73
             |                                 
            
                306,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2010
             | 
            
                -1.00 / -2.05%
             |             
            
                48.70
             |           
            
                48.70
             |               
            
                47.60
             |                           
            
                47.70
             | 
            
                47.70
             |                     
            
                9.06
             |                                 
            
                233,220
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2010
             | 
            
                +0.70 / +1.46%
             |             
            
                48.10
             |           
            
                50.00
             |               
            
                48.10
             |                           
            
                48.70
             | 
            
                48.70
             |                     
            
                9.25
             |                                 
            
                276,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2010
             | 
            
                +2.10 / +4.58%
             |             
            
                48.00
             |           
            
                48.10
             |               
            
                45.90
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                9.11
             |                                 
            
                441,450
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2010
             | 
            
                +2.10 / +4.79%
             |             
            
                45.50
             |           
            
                45.90
             |               
            
                44.80
             |                           
            
                45.90
             | 
            
                45.90
             |                     
            
                8.71
             |                                 
            
                491,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2010
             | 
            
                +2.00 / +4.78%
             |             
            
                43.80
             |           
            
                43.80
             |               
            
                43.80
             |                           
            
                43.80
             | 
            
                43.80
             |                     
            
                8.32
             |                                 
            
                125,060
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2010
             | 
            
                +1.90 / +4.76%
             |             
            
                40.00
             |           
            
                41.80
             |               
            
                39.80
             |                           
            
                41.80
             | 
            
                41.80
             |                     
            
                7.94
             |                                 
            
                624,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2010
             | 
            
                +0.40 / +1.01%
             |             
            
                38.60
             |           
            
                39.90
             |               
            
                38.60
             |                           
            
                39.90
             | 
            
                39.90
             |                     
            
                7.58
             |                                 
            
                651,280
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2010
             | 
            
                -1.80 / -4.36%
             |             
            
                39.30
             |           
            
                39.90
             |               
            
                39.30
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                7.50
             |                                 
            
                509,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2010
             | 
            
                -0.10 / -0.24%
             |             
            
                39.80
             |           
            
                41.30
             |               
            
                39.40
             |                           
            
                41.30
             | 
            
                41.30
             |                     
            
                7.84
             |                                 
            
                780,110
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2010
             | 
            
                -1.60 / -3.72%
             |             
            
                43.00
             |           
            
                43.00
             |               
            
                40.90
             |                           
            
                41.40
             | 
            
                41.40
             |                     
            
                7.86
             |                                 
            
                395,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2010
             | 
            
                -1.30 / -2.93%
             |             
            
                44.40
             |           
            
                44.40
             |               
            
                42.30
             |                           
            
                43.00
             | 
            
                43.00
             |                     
            
                8.16
             |                                 
            
                237,290
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2010
             | 
            
                -1.30 / -2.85%
             |             
            
                45.90
             |           
            
                45.90
             |               
            
                43.90
             |                           
            
                44.30
             | 
            
                44.30
             |                     
            
                8.41
             |                                 
            
                275,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2010
             | 
            
                -2.40 / -5.00%
             |             
            
                47.50
             |           
            
                47.50
             |               
            
                45.60
             |                           
            
                45.60
             | 
            
                45.60
             |                     
            
                8.66
             |                                 
            
                569,530
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2010
             | 
            
                -0.10 / -0.21%
             |             
            
                48.00
             |           
            
                48.10
             |               
            
                47.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                9.11
             |                                 
            
                423,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2010
             | 
            
                +0.10 / +0.21%
             |             
            
                48.70
             |           
            
                48.90
             |               
            
                48.00
             |                           
            
                48.10
             | 
            
                48.10
             |                     
            
                9.13
             |                                 
            
                321,640
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2010
             | 
            
                +1.90 / +4.12%
             |             
            
                46.30
             |           
            
                48.00
             |               
            
                45.50
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                9.11
             |                                 
            
                256,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2010
             | 
            
                -2.40 / -4.95%
             |             
            
                47.00
             |           
            
                48.00
             |               
            
                46.10
             |                           
            
                46.10
             | 
            
                46.10
             |                     
            
                8.75
             |                                 
            
                472,860
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2010
             | 
            
                0.00 / 0.00%
             |             
            
                48.70
             |           
            
                48.70
             |               
            
                46.10
             |                           
            
                48.50
             | 
            
                48.50
             |                     
            
                9.21
             |                                 
            
                243,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2010
             | 
            
                -2.50 / -4.90%
             |             
            
                49.50
             |           
            
                50.00
             |               
            
                48.50
             |                           
            
                48.50
             | 
            
                48.50
             |                     
            
                9.21
             |                                 
            
                599,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2010
             | 
            
                -1.50 / -2.86%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                50.00
             |                           
            
                51.00
             | 
            
                51.00
             |                     
            
                9.68
             |                                 
            
                274,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2010
             | 
            
                -1.00 / -1.87%
             |             
            
                53.50
             |           
            
                53.50
             |               
            
                51.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                9.97
             |                                 
            
                239,420
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2010
             | 
            
                -1.50 / -2.73%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                10.16
             |                                 
            
                180,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2010
             | 
            
                -1.50 / -2.65%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                54.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                10.44
             |                                 
            
                468,540
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2010
             | 
            
                -0.50 / -0.88%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                10.73
             |                                 
            
                252,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2010
             | 
            
                -0.50 / -0.87%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                56.50
             |                           
            
                57.00
             | 
            
                57.00
             |                     
            
                10.82
             |                                 
            
                111,420
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2010
             | 
            
                0.00 / 0.00%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                57.00
             |                           
            
                57.50
             | 
            
                57.50
             |                     
            
                10.92
             |                                 
            
                158,680
             |  
            
                 
             |                                                              
             
    
         
    
    
 |