| 
                 
                    Closing price on 1/10/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.50 | 
                 
                
                    | High | 
                    9.50 | 
                 
                
                    | Low | 
                    9.20 | 
                     
                
                    | Volume | 
                    274,410 | 
                                 
                
                    | Split-adjusted Price | 
                    2.44 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DIG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/10/2012
             | 
            
                -0.10 / -1.05%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.20
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                2.44
             |                                 
            
                274,410
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2012
             | 
            
                -0.30 / -3.06%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.40
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                2.46
             |                                 
            
                630,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2012
             | 
            
                -0.30 / -2.97%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.80
             |                           
            
                9.80
             | 
            
                9.80
             |                     
            
                2.54
             |                                 
            
                242,390
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2012
             | 
            
                -0.20 / -1.94%
             |             
            
                10.30
             |           
            
                10.40
             |               
            
                10.10
             |                           
            
                10.10
             | 
            
                10.10
             |                     
            
                2.62
             |                                 
            
                66,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2012
             | 
            
                -0.20 / -1.90%
             |             
            
                10.70
             |           
            
                10.70
             |               
            
                10.30
             |                           
            
                10.30
             | 
            
                10.30
             |                     
            
                2.67
             |                                 
            
                142,770
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2012
             | 
            
                +0.10 / +0.96%
             |             
            
                10.20
             |           
            
                10.70
             |               
            
                10.20
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                2.72
             |                                 
            
                207,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2011
             | 
            
                +0.10 / +0.97%
             |             
            
                10.30
             |           
            
                10.60
             |               
            
                10.20
             |                           
            
                10.40
             | 
            
                10.40
             |                     
            
                2.70
             |                                 
            
                1,014,430
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2011
             | 
            
                -0.20 / -1.90%
             |             
            
                10.50
             |           
            
                10.50
             |               
            
                10.10
             |                           
            
                10.30
             | 
            
                10.30
             |                     
            
                2.67
             |                                 
            
                980,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2011
             | 
            
                +0.50 / +5.00%
             |             
            
                10.00
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                2.72
             |                                 
            
                389,350
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2011
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                10.00
             |               
            
                9.50
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                2.59
             |                                 
            
                758,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2011
             | 
            
                -0.50 / -4.76%
             |             
            
                10.50
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                2.59
             |                                 
            
                664,080
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2011
             | 
            
                -0.50 / -4.55%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.50
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                2.72
             |                                 
            
                616,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2011
             | 
            
                -0.50 / -4.35%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                2.85
             |                                 
            
                149,140
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2011
             | 
            
                +0.10 / +0.88%
             |             
            
                11.10
             |           
            
                11.70
             |               
            
                11.10
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                2.98
             |                                 
            
                123,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2011
             | 
            
                +0.10 / +0.88%
             |             
            
                11.40
             |           
            
                11.50
             |               
            
                11.00
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                2.96
             |                                 
            
                187,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2011
             | 
            
                +0.50 / +4.63%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.00
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                2.93
             |                                 
            
                263,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2011
             | 
            
                -0.10 / -0.92%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                2.80
             |                                 
            
                740,920
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2011
             | 
            
                -0.50 / -4.39%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                2.83
             |                                 
            
                485,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.80
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                2.96
             |                                 
            
                707,170
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2011
             | 
            
                -0.50 / -4.20%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                2.96
             |                                 
            
                917,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/12/2011
             | 
            
                -0.50 / -4.03%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                3.09
             |                                 
            
                331,060
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2011
             | 
            
                -0.30 / -2.36%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.40
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                3.22
             |                                 
            
                76,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2011
             | 
            
                +0.10 / +0.79%
             |             
            
                12.60
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                3.29
             |                                 
            
                134,010
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2011
             | 
            
                -0.40 / -3.08%
             |             
            
                12.70
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                3.27
             |                                 
            
                29,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2011
             | 
            
                -0.10 / -0.76%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                3.37
             |                                 
            
                103,450
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2011
             | 
            
                +0.60 / +4.80%
             |             
            
                12.70
             |           
            
                13.10
             |               
            
                12.70
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                3.40
             |                                 
            
                207,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/2/2011
             | 
            
                +0.50 / +4.17%
             |             
            
                12.40
             |           
            
                12.60
             |               
            
                12.20
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                3.24
             |                                 
            
                111,720
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2011
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.30
             |               
            
                11.40
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                3.11
             |                                 
            
                61,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2011
             | 
            
                -0.50 / -4.00%
             |             
            
                12.30
             |           
            
                12.50
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                3.11
             |                                 
            
                86,270
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2011
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                12.80
             |               
            
                12.40
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                3.24
             |                                 
            
                59,720
             |  
            
                 
             |                                                              
             
    
         
    
    
 |