| 
                 
                    Closing price on 4/10/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.10 | 
                 
                
                    | High | 
                    17.60 | 
                 
                
                    | Low | 
                    16.60 | 
                     
                
                    | Volume | 
                    246,700 | 
                                 
                
                    | Split-adjusted Price | 
                    6.55 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/10/2012
             | 
            
                -0.50 / -2.92%
             |             
            
                17.10
             |           
            
                17.60
             |               
            
                16.60
             |                           
            
                16.60
             | 
            
                16.60
             |                     
            
                6.55
             |                                 
            
                246,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2012
             | 
            
                +0.80 / +4.91%
             |             
            
                17.00
             |           
            
                17.10
             |               
            
                16.90
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                6.75
             |                                 
            
                696,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2012
             | 
            
                +0.70 / +4.49%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                15.90
             |                           
            
                16.30
             | 
            
                16.30
             |                     
            
                6.43
             |                                 
            
                169,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2012
             | 
            
                +0.70 / +4.70%
             |             
            
                14.90
             |           
            
                15.60
             |               
            
                14.80
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                6.16
             |                                 
            
                120,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2012
             | 
            
                -0.30 / -1.97%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.90
             |                           
            
                14.90
             | 
            
                14.90
             |                     
            
                5.88
             |                                 
            
                101,140
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2012
             | 
            
                +0.40 / +2.70%
             |             
            
                14.70
             |           
            
                15.50
             |               
            
                14.70
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                6.00
             |                                 
            
                154,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2012
             | 
            
                -0.50 / -3.27%
             |             
            
                15.00
             |           
            
                15.20
             |               
            
                14.60
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                5.84
             |                                 
            
                78,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                -0.70 / -4.38%
             |             
            
                15.90
             |           
            
                16.10
             |               
            
                15.20
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                6.04
             |                                 
            
                193,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                15.30
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                6.31
             |                                 
            
                192,530
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2012
             | 
            
                -0.20 / -1.23%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                6.31
             |                                 
            
                1,150,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2012
             | 
            
                +0.70 / +4.52%
             |             
            
                16.20
             |           
            
                16.20
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                6.39
             |                                 
            
                25,180
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2012
             | 
            
                +0.70 / +4.73%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                6.12
             |                                 
            
                514,653
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2012
             | 
            
                +0.70 / +4.96%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                5.84
             |                                 
            
                798,150
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2012
             | 
            
                +0.60 / +4.44%
             |             
            
                13.60
             |           
            
                14.10
             |               
            
                13.60
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                5.56
             |                                 
            
                181,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2012
             | 
            
                +0.10 / +0.75%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.20
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                5.33
             |                                 
            
                95,130
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                +0.10 / +0.75%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                5.29
             |                                 
            
                32,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2012
             | 
            
                -0.20 / -1.48%
             |             
            
                13.40
             |           
            
                13.80
             |               
            
                12.90
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                5.25
             |                                 
            
                167,520
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2012
             | 
            
                +0.50 / +3.85%
             |             
            
                12.70
             |           
            
                13.60
             |               
            
                12.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                5.33
             |                                 
            
                125,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2012
             | 
            
                -0.60 / -4.41%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                5.13
             |                                 
            
                143,670
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2012
             | 
            
                +0.30 / +2.26%
             |             
            
                13.00
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                5.37
             |                                 
            
                80,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2012
             | 
            
                -0.40 / -2.92%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.10
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                5.25
             |                                 
            
                119,780
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2012
             | 
            
                -0.50 / -3.52%
             |             
            
                13.70
             |           
            
                14.20
             |               
            
                13.50
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                5.41
             |                                 
            
                91,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2012
             | 
            
                -0.70 / -4.70%
             |             
            
                14.20
             |           
            
                14.80
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                5.60
             |                                 
            
                142,730
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2012
             | 
            
                +0.40 / +2.76%
             |             
            
                14.70
             |           
            
                15.10
             |               
            
                14.10
             |                           
            
                14.90
             | 
            
                14.90
             |                     
            
                5.88
             |                                 
            
                189,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2012
             | 
            
                +0.60 / +4.32%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.10
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                5.72
             |                                 
            
                614,270
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2012
             | 
            
                +0.60 / +4.51%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.80
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                5.49
             |                                 
            
                103,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2012
             | 
            
                +0.20 / +1.53%
             |             
            
                13.00
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                5.25
             |                                 
            
                203,670
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2012
             | 
            
                -0.10 / -0.76%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.90
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                5.17
             |                                 
            
                65,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2012
             | 
            
                +0.10 / +0.76%
             |             
            
                13.10
             |           
            
                13.20
             |               
            
                12.90
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                5.21
             |                                 
            
                32,050
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2012
             | 
            
                -0.60 / -4.38%
             |             
            
                13.70
             |           
            
                14.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                5.17
             |                                 
            
                76,380
             |  
            
                 
             |                                                              
             
    
         
    
    
 |