| 
                 
                    Closing price on 5/2/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.30 | 
                 
                
                    | High | 
                    11.30 | 
                 
                
                    | Low | 
                    10.90 | 
                     
                
                    | Volume | 
                    99,210 | 
                                 
                
                    | Split-adjusted Price | 
                    3.36 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DIG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/2/2013
             | 
            
                -0.30 / -2.65%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.36
             |                                 
            
                99,210
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                +0.10 / +0.89%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                11.00
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.46
             |                                 
            
                62,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                +0.40 / +3.70%
             |             
            
                10.90
             |           
            
                11.40
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.43
             |                                 
            
                192,420
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                -0.20 / -1.82%
             |             
            
                10.80
             |           
            
                11.20
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.30
             |                                 
            
                193,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                -0.20 / -1.79%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.36
             |                                 
            
                98,460
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.43
             |                                 
            
                70,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -0.30 / -2.61%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.43
             |                                 
            
                387,720
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                +0.10 / +0.88%
             |             
            
                11.40
             |           
            
                11.60
             |               
            
                11.40
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                3.52
             |                                 
            
                109,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                -0.20 / -1.72%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.10
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.49
             |                                 
            
                276,250
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                -0.50 / -4.13%
             |             
            
                12.00
             |           
            
                12.10
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.55
             |                                 
            
                233,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2013
             | 
            
                -0.40 / -3.20%
             |             
            
                12.50
             |           
            
                12.70
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                3.70
             |                                 
            
                230,550
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                +0.40 / +3.31%
             |             
            
                12.40
             |           
            
                12.50
             |               
            
                12.20
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                3.82
             |                                 
            
                219,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                -0.30 / -2.42%
             |             
            
                12.40
             |           
            
                12.90
             |               
            
                12.10
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                3.70
             |                                 
            
                626,840
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                +0.50 / +4.20%
             |             
            
                11.90
             |           
            
                12.50
             |               
            
                11.90
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                3.79
             |                                 
            
                282,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                -0.30 / -2.46%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                11.70
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                3.64
             |                                 
            
                266,150
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                -0.10 / -0.81%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                12.00
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                3.73
             |                                 
            
                406,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2013
             | 
            
                -0.10 / -0.81%
             |             
            
                12.30
             |           
            
                12.50
             |               
            
                12.30
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                3.76
             |                                 
            
                205,520
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2013
             | 
            
                -0.40 / -3.13%
             |             
            
                12.70
             |           
            
                13.00
             |               
            
                12.40
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                3.79
             |                                 
            
                209,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.80
             |           
            
                13.30
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                3.92
             |                                 
            
                138,620
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2013
             | 
            
                +0.20 / +1.59%
             |             
            
                12.60
             |           
            
                12.80
             |               
            
                12.30
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                3.92
             |                                 
            
                174,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.40
             |           
            
                12.70
             |               
            
                12.20
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                3.85
             |                                 
            
                124,640
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2013
             | 
            
                -0.10 / -0.79%
             |             
            
                12.80
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                3.85
             |                                 
            
                88,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2013
             | 
            
                -0.20 / -1.55%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                3.88
             |                                 
            
                111,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2013
             | 
            
                -0.30 / -2.27%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                3.95
             |                                 
            
                46,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.00
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                4.04
             |                                 
            
                194,360
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2013
             | 
            
                -0.30 / -2.24%
             |             
            
                13.30
             |           
            
                13.40
             |               
            
                12.80
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                4.01
             |                                 
            
                161,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2013
             | 
            
                -0.10 / -0.74%
             |             
            
                13.40
             |           
            
                13.60
             |               
            
                13.40
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                4.10
             |                                 
            
                219,440
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2013
             | 
            
                +0.30 / +2.27%
             |             
            
                13.30
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                4.13
             |                                 
            
                196,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2013
             | 
            
                -0.30 / -2.22%
             |             
            
                13.20
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                4.04
             |                                 
            
                279,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2013
             | 
            
                -0.50 / -3.57%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                4.13
             |                                 
            
                116,030
             |  
            
                 
             |                                                              
             
    
         
    
    
 |