| 
                 
                    Closing price on 10/24/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    16.50 | 
                 
                
                    | High | 
                    16.50 | 
                 
                
                    | Low | 
                    16.10 | 
                     
                
                    | Volume | 
                    89,250 | 
                                 
                
                    | Split-adjusted Price | 
                    5.67 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/24/2011
             | 
            
                +0.10 / +0.62%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.10
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                5.67
             |                                 
            
                89,250
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2011
             | 
            
                +0.30 / +1.90%
             |             
            
                16.10
             |           
            
                16.30
             |               
            
                15.80
             |                           
            
                16.10
             | 
            
                16.10
             |                     
            
                5.64
             |                                 
            
                86,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2011
             | 
            
                +0.20 / +1.28%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                15.70
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                5.53
             |                                 
            
                29,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2011
             | 
            
                -0.20 / -1.27%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                15.60
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                5.46
             |                                 
            
                202,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2011
             | 
            
                -0.20 / -1.25%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                15.70
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                5.53
             |                                 
            
                137,040
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2011
             | 
            
                -0.50 / -3.03%
             |             
            
                16.50
             |           
            
                16.60
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                5.60
             |                                 
            
                121,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                16.50
             |           
            
                16.90
             |               
            
                16.40
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                5.78
             |                                 
            
                116,890
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2011
             | 
            
                +0.40 / +2.48%
             |             
            
                16.50
             |           
            
                16.60
             |               
            
                16.10
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                5.78
             |                                 
            
                102,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2011
             | 
            
                -0.70 / -4.17%
             |             
            
                16.50
             |           
            
                16.60
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.10
             |                     
            
                5.64
             |                                 
            
                155,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.30
             |           
            
                17.30
             |               
            
                16.70
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                5.88
             |                                 
            
                71,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2011
             | 
            
                +0.10 / +0.60%
             |             
            
                16.80
             |           
            
                17.10
             |               
            
                16.60
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                5.88
             |                                 
            
                153,330
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2011
             | 
            
                +0.40 / +2.45%
             |             
            
                16.70
             |           
            
                17.10
             |               
            
                16.60
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                5.85
             |                                 
            
                391,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2011
             | 
            
                +0.70 / +4.49%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                16.00
             |                           
            
                16.30
             | 
            
                16.30
             |                     
            
                5.71
             |                                 
            
                264,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2011
             | 
            
                +0.10 / +0.65%
             |             
            
                15.90
             |           
            
                16.00
             |               
            
                15.50
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                5.46
             |                                 
            
                85,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2011
             | 
            
                -0.10 / -0.64%
             |             
            
                15.60
             |           
            
                15.80
             |               
            
                15.20
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                5.43
             |                                 
            
                181,830
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2011
             | 
            
                -0.80 / -4.88%
             |             
            
                16.20
             |           
            
                16.40
             |               
            
                15.60
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                5.46
             |                                 
            
                346,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/30/2011
             | 
            
                -0.30 / -1.80%
             |             
            
                16.60
             |           
            
                16.90
             |               
            
                16.30
             |                           
            
                16.40
             | 
            
                16.40
             |                     
            
                5.74
             |                                 
            
                278,980
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2011
             | 
            
                -0.30 / -1.76%
             |             
            
                17.10
             |           
            
                17.10
             |               
            
                16.40
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                5.85
             |                                 
            
                176,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2011
             | 
            
                -0.20 / -1.16%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                5.95
             |                                 
            
                344,790
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2011
             | 
            
                -0.50 / -2.82%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                6.02
             |                                 
            
                202,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2011
             | 
            
                +0.80 / +4.73%
             |             
            
                17.00
             |           
            
                17.70
             |               
            
                17.00
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                6.20
             |                                 
            
                656,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2011
             | 
            
                -0.80 / -4.52%
             |             
            
                17.20
             |           
            
                17.40
             |               
            
                16.90
             |                           
            
                16.90
             | 
            
                16.90
             |                     
            
                5.92
             |                                 
            
                96,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2011
             | 
            
                +0.50 / +2.91%
             |             
            
                17.20
             |           
            
                17.80
             |               
            
                17.20
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                6.20
             |                                 
            
                191,980
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.20
             |           
            
                17.80
             |               
            
                17.10
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                6.02
             |                                 
            
                246,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2011
             | 
            
                -0.90 / -4.97%
             |             
            
                18.00
             |           
            
                18.10
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                6.02
             |                                 
            
                278,440
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2011
             | 
            
                -0.30 / -1.63%
             |             
            
                18.40
             |           
            
                18.60
             |               
            
                17.50
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                6.34
             |                                 
            
                253,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2011
             | 
            
                -0.90 / -4.66%
             |             
            
                19.30
             |           
            
                19.30
             |               
            
                18.40
             |                           
            
                18.40
             | 
            
                18.40
             |                     
            
                6.44
             |                                 
            
                307,520
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2011
             | 
            
                +0.40 / +2.12%
             |             
            
                18.50
             |           
            
                19.60
             |               
            
                18.30
             |                           
            
                19.30
             | 
            
                19.30
             |                     
            
                6.76
             |                                 
            
                303,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2011
             | 
            
                +0.90 / +5.00%
             |             
            
                18.80
             |           
            
                18.90
             |               
            
                18.50
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                6.62
             |                                 
            
                461,390
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2011
             | 
            
                +0.80 / +4.65%
             |             
            
                17.20
             |           
            
                18.00
             |               
            
                17.20
             |                           
            
                18.00
             | 
            
                18.00
             |                     
            
                6.30
             |                                 
            
                252,510
             |  
            
                 
             |                                                              
             
    
         
    
    
 |