| 
                 
                    Closing price on 1/31/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.40 | 
                 
                
                    | High | 
                    13.50 | 
                 
                
                    | Low | 
                    13.00 | 
                     
                
                    | Volume | 
                    39,360 | 
                                 
                
                    | Split-adjusted Price | 
                    4.98 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/31/2012
             | 
            
                +0.10 / +0.77%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                4.98
             |                                 
            
                39,360
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2012
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                4.94
             |                                 
            
                30,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2012
             | 
            
                +0.40 / +3.17%
             |             
            
                12.90
             |           
            
                13.00
             |               
            
                12.30
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                4.94
             |                                 
            
                59,240
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2012
             | 
            
                +0.60 / +5.00%
             |             
            
                12.30
             |           
            
                12.60
             |               
            
                12.20
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                4.79
             |                                 
            
                46,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2012
             | 
            
                +0.20 / +1.69%
             |             
            
                11.80
             |           
            
                12.30
             |               
            
                11.80
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                4.56
             |                                 
            
                65,580
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2012
             | 
            
                +0.20 / +1.72%
             |             
            
                11.80
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                4.49
             |                                 
            
                58,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2012
             | 
            
                +0.50 / +4.50%
             |             
            
                11.10
             |           
            
                11.60
             |               
            
                11.10
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                4.41
             |                                 
            
                108,070
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2012
             | 
            
                +0.30 / +2.78%
             |             
            
                10.80
             |           
            
                11.10
             |               
            
                10.80
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                4.22
             |                                 
            
                28,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2012
             | 
            
                -0.40 / -3.57%
             |             
            
                11.10
             |           
            
                11.20
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                4.11
             |                                 
            
                43,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                4.26
             |                                 
            
                10,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2012
             | 
            
                +0.40 / +3.70%
             |             
            
                10.80
             |           
            
                11.20
             |               
            
                10.60
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                4.26
             |                                 
            
                40,020
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2012
             | 
            
                +0.30 / +2.86%
             |             
            
                10.30
             |           
            
                10.80
             |               
            
                10.30
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                4.11
             |                                 
            
                46,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2012
             | 
            
                -0.30 / -2.78%
             |             
            
                10.60
             |           
            
                10.80
             |               
            
                10.50
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                3.99
             |                                 
            
                50,490
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2012
             | 
            
                -0.20 / -1.82%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                4.11
             |                                 
            
                24,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                4.18
             |                                 
            
                4,530
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2012
             | 
            
                -0.10 / -0.90%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                4.18
             |                                 
            
                11,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2011
             | 
            
                +0.50 / +4.72%
             |             
            
                10.90
             |           
            
                11.10
             |               
            
                10.70
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                4.22
             |                                 
            
                33,690
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2011
             | 
            
                -0.30 / -2.75%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                4.03
             |                                 
            
                15,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2011
             | 
            
                -0.30 / -2.68%
             |             
            
                10.80
             |           
            
                11.20
             |               
            
                10.70
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                4.14
             |                                 
            
                94,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2011
             | 
            
                -1.50 / -11.81%
             |             
            
                11.40
             |           
            
                12.00
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                4.26
             |                                 
            
                38,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2011
             | 
            
                -0.50 / -3.79%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                4.45
             |                                 
            
                65,250
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2011
             | 
            
                +0.10 / +0.76%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                4.62
             |                                 
            
                70,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2011
             | 
            
                -0.20 / -1.50%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                4.59
             |                                 
            
                66,830
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                13.80
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                4.66
             |                                 
            
                79,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2011
             | 
            
                -0.40 / -2.92%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                4.66
             |                                 
            
                43,160
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2011
             | 
            
                -0.10 / -0.72%
             |             
            
                13.80
             |           
            
                14.20
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                4.80
             |                                 
            
                60,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2011
             | 
            
                +0.10 / +0.73%
             |             
            
                13.90
             |           
            
                14.00
             |               
            
                13.70
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                4.83
             |                                 
            
                28,030
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2011
             | 
            
                -0.10 / -0.72%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.30
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                4.80
             |                                 
            
                59,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2011
             | 
            
                -0.30 / -2.13%
             |             
            
                14.10
             |           
            
                14.10
             |               
            
                13.80
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                4.83
             |                                 
            
                58,660
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2011
             | 
            
                +0.10 / +0.71%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                4.94
             |                                 
            
                62,760
             |  
            
                 
             |                                                              
             
    
         
    
    
 |