| 
                 
                    Closing price on 7/5/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    18.00 | 
                 
                
                    | High | 
                    18.50 | 
                 
                
                    | Low | 
                    17.80 | 
                     
                
                    | Volume | 
                    73,350 | 
                                 
                
                    | Split-adjusted Price | 
                    7.30 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/5/2012
             | 
            
                +0.20 / +1.09%
             |             
            
                18.00
             |           
            
                18.50
             |               
            
                17.80
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                7.30
             |                                 
            
                73,350
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                18.00
             |           
            
                18.90
             |               
            
                17.90
             |                           
            
                18.30
             | 
            
                18.30
             |                     
            
                7.22
             |                                 
            
                58,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2012
             | 
            
                -0.40 / -2.14%
             |             
            
                18.20
             |           
            
                18.50
             |               
            
                17.80
             |                           
            
                18.30
             | 
            
                18.30
             |                     
            
                7.22
             |                                 
            
                153,610
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2012
             | 
            
                -0.60 / -3.11%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                18.70
             |                           
            
                18.70
             | 
            
                18.70
             |                     
            
                7.38
             |                                 
            
                88,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2012
             | 
            
                -0.20 / -1.03%
             |             
            
                19.30
             |           
            
                19.80
             |               
            
                19.30
             |                           
            
                19.30
             | 
            
                19.30
             |                     
            
                7.62
             |                                 
            
                78,350
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                20.00
             |               
            
                19.00
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                7.69
             |                                 
            
                41,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2012
             | 
            
                0.00 / 0.00%
             |             
            
                19.20
             |           
            
                20.00
             |               
            
                19.20
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                7.69
             |                                 
            
                67,580
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2012
             | 
            
                -1.00 / -4.88%
             |             
            
                20.10
             |           
            
                20.10
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                7.69
             |                                 
            
                265,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2012
             | 
            
                -1.00 / -4.65%
             |             
            
                21.00
             |           
            
                21.30
             |               
            
                20.50
             |                           
            
                20.50
             | 
            
                20.50
             |                     
            
                8.09
             |                                 
            
                278,810
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2012
             | 
            
                -0.10 / -0.46%
             |             
            
                21.60
             |           
            
                21.60
             |               
            
                21.00
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                8.48
             |                                 
            
                69,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2012
             | 
            
                -0.10 / -0.46%
             |             
            
                22.00
             |           
            
                22.00
             |               
            
                21.30
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                8.52
             |                                 
            
                64,680
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2012
             | 
            
                +0.10 / +0.46%
             |             
            
                22.20
             |           
            
                22.20
             |               
            
                21.50
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                8.56
             |                                 
            
                72,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2012
             | 
            
                -1.10 / -4.85%
             |             
            
                22.80
             |           
            
                22.80
             |               
            
                21.60
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                8.52
             |                                 
            
                190,720
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2012
             | 
            
                -0.10 / -0.44%
             |             
            
                22.80
             |           
            
                23.40
             |               
            
                22.00
             |                           
            
                22.70
             | 
            
                22.70
             |                     
            
                8.96
             |                                 
            
                104,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2012
             | 
            
                +1.00 / +4.59%
             |             
            
                21.40
             |           
            
                22.80
             |               
            
                21.40
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                9.00
             |                                 
            
                99,570
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2012
             | 
            
                -1.10 / -4.80%
             |             
            
                22.50
             |           
            
                22.60
             |               
            
                21.80
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                8.60
             |                                 
            
                184,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2012
             | 
            
                +0.90 / +4.09%
             |             
            
                21.70
             |           
            
                22.90
             |               
            
                21.50
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                9.04
             |                                 
            
                142,370
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2012
             | 
            
                -1.00 / -4.35%
             |             
            
                22.60
             |           
            
                23.10
             |               
            
                22.00
             |                           
            
                22.00
             | 
            
                22.00
             |                     
            
                8.68
             |                                 
            
                161,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                23.00
             |           
            
                23.40
             |               
            
                22.50
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                9.08
             |                                 
            
                135,590
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2012
             | 
            
                -0.50 / -2.13%
             |             
            
                24.00
             |           
            
                24.10
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                9.08
             |                                 
            
                257,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2012
             | 
            
                +0.50 / +2.17%
             |             
            
                23.40
             |           
            
                24.10
             |               
            
                23.00
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                9.27
             |                                 
            
                345,210
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2012
             | 
            
                +0.40 / +1.77%
             |             
            
                22.20
             |           
            
                23.20
             |               
            
                21.60
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                9.08
             |                                 
            
                110,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2012
             | 
            
                +0.90 / +4.15%
             |             
            
                21.00
             |           
            
                22.60
             |               
            
                20.90
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                8.92
             |                                 
            
                137,460
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2012
             | 
            
                -0.10 / -0.46%
             |             
            
                21.10
             |           
            
                21.70
             |               
            
                20.80
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                8.56
             |                                 
            
                200,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2012
             | 
            
                -1.10 / -4.80%
             |             
            
                22.90
             |           
            
                23.00
             |               
            
                21.80
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                8.60
             |                                 
            
                170,050
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2012
             | 
            
                -0.30 / -1.29%
             |             
            
                22.60
             |           
            
                23.20
             |               
            
                22.10
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                9.04
             |                                 
            
                138,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2012
             | 
            
                +0.10 / +0.43%
             |             
            
                23.70
             |           
            
                23.90
             |               
            
                23.20
             |                           
            
                23.20
             | 
            
                23.20
             |                     
            
                9.15
             |                                 
            
                187,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2012
             | 
            
                +1.10 / +5.00%
             |             
            
                21.30
             |           
            
                23.10
             |               
            
                21.30
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                9.12
             |                                 
            
                360,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2012
             | 
            
                +1.00 / +4.76%
             |             
            
                22.00
             |           
            
                22.00
             |               
            
                21.90
             |                           
            
                22.00
             | 
            
                22.00
             |                     
            
                8.68
             |                                 
            
                345,620
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2012
             | 
            
                +1.00 / +5.00%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                8.29
             |                                 
            
                44,240
             |  
            
                 
             |                                                              
             
    
         
    
    
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