| 
                 
                    Closing price on 11/11/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    14.50 | 
                 
                
                    | High | 
                    14.50 | 
                 
                
                    | Low | 
                    14.00 | 
                     
                
                    | Volume | 
                    60,330 | 
                                 
                
                    | Split-adjusted Price | 
                    3.63 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DIG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/11/2011
             | 
            
                -0.30 / -2.10%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                3.63
             |                                 
            
                60,330
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2011
             | 
            
                -0.70 / -4.67%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                3.71
             |                                 
            
                286,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2011
             | 
            
                -0.70 / -4.46%
             |             
            
                15.70
             |           
            
                15.70
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                3.89
             |                                 
            
                367,840
             |            
            
                 
             |                                       
         
    
        
            | 
                11/8/2011
             | 
            
                +0.40 / +2.61%
             |             
            
                15.10
             |           
            
                15.70
             |               
            
                15.10
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                4.07
             |                                 
            
                310,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/7/2011
             | 
            
                -0.40 / -2.55%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.30
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                3.97
             |                                 
            
                53,360
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2011
             | 
            
                -0.20 / -1.26%
             |             
            
                16.30
             |           
            
                16.30
             |               
            
                15.70
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                4.07
             |                                 
            
                49,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2011
             | 
            
                0.00 / 0.00%
             |             
            
                15.90
             |           
            
                16.00
             |               
            
                15.70
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                4.12
             |                                 
            
                111,670
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2011
             | 
            
                -0.10 / -0.63%
             |             
            
                16.20
             |           
            
                16.20
             |               
            
                15.80
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                4.12
             |                                 
            
                135,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/1/2011
             | 
            
                -0.80 / -4.76%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                57,360
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                16.70
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                4.36
             |                                 
            
                179,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2011
             | 
            
                +0.80 / +5.00%
             |             
            
                16.30
             |           
            
                16.80
             |               
            
                16.10
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                4.36
             |                                 
            
                294,180
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2011
             | 
            
                +0.10 / +0.63%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                15.90
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                151,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2011
             | 
            
                -0.10 / -0.63%
             |             
            
                15.80
             |           
            
                16.00
             |               
            
                15.80
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                4.12
             |                                 
            
                90,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2011
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.20
             |               
            
                15.80
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                163,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2011
             | 
            
                +0.30 / +1.91%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                4.15
             |                                 
            
                97,960
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2011
             | 
            
                +0.70 / +4.67%
             |             
            
                15.00
             |           
            
                15.70
             |               
            
                15.00
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                4.07
             |                                 
            
                219,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2011
             | 
            
                0.00 / 0.00%
             |             
            
                15.10
             |           
            
                15.20
             |               
            
                14.70
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                3.89
             |                                 
            
                63,460
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2011
             | 
            
                -5.00 / -25.00%
             |             
            
                15.70
             |           
            
                15.70
             |               
            
                14.70
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                3.89
             |                                 
            
                75,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2011
             | 
            
                -0.70 / -3.38%
             |             
            
                20.70
             |           
            
                20.70
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                3.89
             |                                 
            
                378,870
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2011
             | 
            
                -0.10 / -0.48%
             |             
            
                20.90
             |           
            
                20.90
             |               
            
                20.00
             |                           
            
                20.70
             | 
            
                20.70
             |                     
            
                4.03
             |                                 
            
                187,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2011
             | 
            
                +0.20 / +0.97%
             |             
            
                20.90
             |           
            
                21.20
             |               
            
                20.70
             |                           
            
                20.80
             | 
            
                20.80
             |                     
            
                4.05
             |                                 
            
                330,190
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2011
             | 
            
                +0.10 / +0.49%
             |             
            
                20.70
             |           
            
                20.70
             |               
            
                20.20
             |                           
            
                20.60
             | 
            
                20.60
             |                     
            
                4.01
             |                                 
            
                264,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2011
             | 
            
                0.00 / 0.00%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                20.40
             |                           
            
                20.50
             | 
            
                20.50
             |                     
            
                3.99
             |                                 
            
                327,970
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2011
             | 
            
                +0.10 / +0.49%
             |             
            
                20.40
             |           
            
                20.60
             |               
            
                20.40
             |                           
            
                20.50
             | 
            
                20.50
             |                     
            
                3.99
             |                                 
            
                258,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2011
             | 
            
                -0.60 / -2.86%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                20.30
             |                           
            
                20.40
             | 
            
                20.40
             |                     
            
                3.97
             |                                 
            
                304,730
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2011
             | 
            
                +0.60 / +2.94%
             |             
            
                20.90
             |           
            
                21.40
             |               
            
                20.50
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                4.09
             |                                 
            
                362,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2011
             | 
            
                +0.90 / +4.62%
             |             
            
                19.20
             |           
            
                20.40
             |               
            
                19.20
             |                           
            
                20.40
             | 
            
                20.40
             |                     
            
                3.97
             |                                 
            
                348,270
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2011
             | 
            
                -0.10 / -0.51%
             |             
            
                19.70
             |           
            
                20.00
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                3.79
             |                                 
            
                294,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2011
             | 
            
                -0.40 / -2.00%
             |             
            
                19.20
             |           
            
                19.90
             |               
            
                19.20
             |                           
            
                19.60
             | 
            
                19.60
             |                     
            
                3.81
             |                                 
            
                82,570
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2011
             | 
            
                -0.10 / -0.50%
             |             
            
                20.00
             |           
            
                20.90
             |               
            
                19.70
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                3.89
             |                                 
            
                226,170
             |  
            
                 
             |                                                              
             
    
         
    
    
 |