| 
                 
                    Closing price on 3/1/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.20 | 
                 
                
                    | High | 
                    13.20 | 
                 
                
                    | Low | 
                    12.90 | 
                     
                
                    | Volume | 
                    65,550 | 
                                 
                
                    | Split-adjusted Price | 
                    5.17 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2012
             | 
            
                +0.10 / +0.74%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                5.41
             |                                 
            
                245,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                13.60
             |           
            
                14.10
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                5.17
             |                                 
            
                185,620
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2012
             | 
            
                +0.60 / +4.62%
             |             
            
                13.00
             |           
            
                13.60
             |               
            
                12.90
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                5.17
             |                                 
            
                248,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2012
             | 
            
                +0.20 / +1.56%
             |             
            
                12.80
             |           
            
                13.20
             |               
            
                12.60
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                4.94
             |                                 
            
                102,110
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2012
             | 
            
                -0.40 / -3.03%
             |             
            
                13.50
             |           
            
                13.60
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                4.87
             |                                 
            
                149,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2012
             | 
            
                +0.50 / +3.94%
             |             
            
                12.90
             |           
            
                13.30
             |               
            
                12.80
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                5.02
             |                                 
            
                119,880
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2012
             | 
            
                +0.30 / +2.42%
             |             
            
                12.50
             |           
            
                12.70
             |               
            
                12.50
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                4.83
             |                                 
            
                71,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2012
             | 
            
                +0.10 / +0.81%
             |             
            
                12.30
             |           
            
                12.60
             |               
            
                12.30
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                4.71
             |                                 
            
                54,950
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.30
             |           
            
                12.70
             |               
            
                12.20
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                4.68
             |                                 
            
                79,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2012
             | 
            
                +0.50 / +4.24%
             |             
            
                12.00
             |           
            
                12.30
             |               
            
                11.80
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                4.68
             |                                 
            
                102,610
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2012
             | 
            
                -0.60 / -4.84%
             |             
            
                12.00
             |           
            
                12.40
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                4.49
             |                                 
            
                87,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2012
             | 
            
                -0.40 / -3.13%
             |             
            
                12.50
             |           
            
                12.80
             |               
            
                12.40
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                4.71
             |                                 
            
                88,560
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2012
             | 
            
                -0.20 / -1.54%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                4.87
             |                                 
            
                34,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2012
             | 
            
                +0.40 / +3.17%
             |             
            
                12.70
             |           
            
                13.10
             |               
            
                12.50
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                4.94
             |                                 
            
                60,590
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                4.79
             |                                 
            
                32,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2012
             | 
            
                -0.30 / -2.33%
             |             
            
                12.50
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                4.79
             |                                 
            
                30,250
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2012
             | 
            
                -0.50 / -3.73%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                12.80
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                4.90
             |                                 
            
                57,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2012
             | 
            
                +0.60 / +4.69%
             |             
            
                12.80
             |           
            
                13.40
             |               
            
                12.80
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                5.09
             |                                 
            
                59,750
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2012
             | 
            
                -0.30 / -2.29%
             |             
            
                13.00
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                4.87
             |                                 
            
                116,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |