| 
                 
                    Closing price on 7/23/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.20 | 
                 
                
                    | High | 
                    17.80 | 
                 
                
                    | Low | 
                    17.10 | 
                     
                
                    | Volume | 
                    60,660 | 
                                 
                
                    | Split-adjusted Price | 
                    4.44 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DIG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/23/2012
             | 
            
                -0.30 / -1.72%
             |             
            
                17.20
             |           
            
                17.80
             |               
            
                17.10
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                4.44
             |                                 
            
                60,660
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2012
             | 
            
                -0.70 / -3.87%
             |             
            
                18.00
             |           
            
                18.40
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                4.51
             |                                 
            
                259,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2012
             | 
            
                +0.20 / +1.12%
             |             
            
                18.00
             |           
            
                18.40
             |               
            
                17.30
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                4.70
             |                                 
            
                121,590
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2012
             | 
            
                +0.40 / +2.29%
             |             
            
                17.50
             |           
            
                18.00
             |               
            
                17.40
             |                           
            
                17.90
             | 
            
                17.90
             |                     
            
                4.64
             |                                 
            
                101,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2012
             | 
            
                +0.80 / +4.79%
             |             
            
                16.80
             |           
            
                17.50
             |               
            
                16.80
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                4.54
             |                                 
            
                76,780
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2012
             | 
            
                -0.60 / -3.47%
             |             
            
                17.00
             |           
            
                17.50
             |               
            
                16.70
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                4.33
             |                                 
            
                77,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2012
             | 
            
                +0.70 / +4.22%
             |             
            
                16.30
             |           
            
                17.40
             |               
            
                16.30
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                4.49
             |                                 
            
                220,270
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2012
             | 
            
                +0.60 / +3.75%
             |             
            
                15.70
             |           
            
                16.60
             |               
            
                15.70
             |                           
            
                16.60
             | 
            
                16.60
             |                     
            
                4.31
             |                                 
            
                43,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2012
             | 
            
                +0.40 / +2.56%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                15.40
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                43,960
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2012
             | 
            
                -0.60 / -3.70%
             |             
            
                15.60
             |           
            
                16.20
             |               
            
                15.60
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                4.05
             |                                 
            
                77,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2012
             | 
            
                -0.80 / -4.71%
             |             
            
                16.20
             |           
            
                16.40
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                4.20
             |                                 
            
                53,780
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2012
             | 
            
                +0.50 / +3.03%
             |             
            
                16.90
             |           
            
                17.10
             |               
            
                16.50
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                4.41
             |                                 
            
                78,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2012
             | 
            
                +0.70 / +4.43%
             |             
            
                15.60
             |           
            
                16.50
             |               
            
                15.40
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                4.28
             |                                 
            
                59,080
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2012
             | 
            
                -0.20 / -1.25%
             |             
            
                16.20
             |           
            
                16.20
             |               
            
                15.60
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                4.10
             |                                 
            
                68,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2012
             | 
            
                0.00 / 0.00%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                15.60
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                101,990
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2012
             | 
            
                -0.40 / -2.44%
             |             
            
                16.50
             |           
            
                16.60
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                115,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                16.40
             |           
            
                16.90
             |               
            
                16.40
             |                           
            
                16.40
             | 
            
                16.40
             |                     
            
                4.25
             |                                 
            
                74,140
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2012
             | 
            
                -0.10 / -0.61%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.00
             |                           
            
                16.40
             | 
            
                16.40
             |                     
            
                4.25
             |                                 
            
                210,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2012
             | 
            
                0.00 / 0.00%
             |             
            
                16.30
             |           
            
                17.00
             |               
            
                16.30
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                4.28
             |                                 
            
                115,370
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2012
             | 
            
                -0.50 / -2.94%
             |             
            
                17.00
             |           
            
                17.30
             |               
            
                16.50
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                4.28
             |                                 
            
                193,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2012
             | 
            
                -0.60 / -3.41%
             |             
            
                17.40
             |           
            
                17.50
             |               
            
                16.80
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                4.41
             |                                 
            
                302,430
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2012
             | 
            
                -0.80 / -4.35%
             |             
            
                18.10
             |           
            
                18.20
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                4.57
             |                                 
            
                149,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2012
             | 
            
                -0.30 / -1.60%
             |             
            
                18.20
             |           
            
                18.90
             |               
            
                18.20
             |                           
            
                18.40
             | 
            
                18.40
             |                     
            
                4.77
             |                                 
            
                82,490
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2012
             | 
            
                +0.40 / +2.19%
             |             
            
                18.20
             |           
            
                18.80
             |               
            
                18.00
             |                           
            
                18.70
             | 
            
                18.70
             |                     
            
                4.85
             |                                 
            
                108,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2012
             | 
            
                -0.70 / -3.68%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                18.30
             |                           
            
                18.30
             | 
            
                18.30
             |                     
            
                4.75
             |                                 
            
                84,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2012
             | 
            
                +0.90 / +4.97%
             |             
            
                18.90
             |           
            
                19.00
             |               
            
                18.70
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                4.93
             |                                 
            
                439,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2012
             | 
            
                +0.80 / +4.62%
             |             
            
                17.70
             |           
            
                18.10
             |               
            
                17.30
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                4.70
             |                                 
            
                182,510
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2012
             | 
            
                -0.20 / -1.14%
             |             
            
                17.30
             |           
            
                17.80
             |               
            
                17.20
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                4.49
             |                                 
            
                83,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2012
             | 
            
                -0.70 / -3.85%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                17.30
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                4.54
             |                                 
            
                225,330
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2012
             | 
            
                -0.70 / -3.70%
             |             
            
                18.20
             |           
            
                18.70
             |               
            
                18.00
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                4.72
             |                                 
            
                264,580
             |  
            
                 
             |                                                              
             
    
         
    
    
 |