| 
                 
                    Closing price on 9/15/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    36.90 | 
                 
                
                    | High | 
                    40.00 | 
                 
                
                    | Low | 
                    36.90 | 
                     
                
                    | Volume | 
                    272,110 | 
                                 
                
                    | Split-adjusted Price | 
                    7.21 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DQC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/15/2008
             | 
            
                -1.90 / -4.90%
             |             
            
                36.90
             |           
            
                40.00
             |               
            
                36.90
             |                           
            
                36.90
             | 
            
                36.90
             |                     
            
                7.21
             |                                 
            
                272,110
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2008
             | 
            
                -2.00 / -4.90%
             |             
            
                38.80
             |           
            
                40.00
             |               
            
                38.80
             |                           
            
                38.80
             | 
            
                38.80
             |                     
            
                7.59
             |                                 
            
                268,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2008
             | 
            
                -1.20 / -2.86%
             |             
            
                41.80
             |           
            
                42.00
             |               
            
                40.80
             |                           
            
                40.80
             | 
            
                40.80
             |                     
            
                7.98
             |                                 
            
                158,580
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2008
             | 
            
                0.00 / 0.00%
             |             
            
                44.00
             |           
            
                44.00
             |               
            
                40.60
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                8.21
             |                                 
            
                211,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2008
             | 
            
                +1.40 / +3.45%
             |             
            
                41.00
             |           
            
                42.60
             |               
            
                41.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                8.21
             |                                 
            
                166,260
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2008
             | 
            
                -1.70 / -4.02%
             |             
            
                40.20
             |           
            
                41.00
             |               
            
                40.20
             |                           
            
                40.60
             | 
            
                40.60
             |                     
            
                7.94
             |                                 
            
                177,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2008
             | 
            
                -2.00 / -4.51%
             |             
            
                44.30
             |           
            
                44.30
             |               
            
                42.20
             |                           
            
                42.30
             | 
            
                42.30
             |                     
            
                8.27
             |                                 
            
                184,020
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2008
             | 
            
                +1.40 / +3.26%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                42.00
             |                           
            
                44.30
             | 
            
                44.30
             |                     
            
                8.66
             |                                 
            
                360,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2008
             | 
            
                +2.00 / +4.89%
             |             
            
                42.90
             |           
            
                42.90
             |               
            
                42.90
             |                           
            
                42.90
             | 
            
                42.90
             |                     
            
                8.39
             |                                 
            
                103,460
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2008
             | 
            
                0.00 / 0.00%
             |             
            
                38.90
             |           
            
                40.90
             |               
            
                38.90
             |                           
            
                40.90
             | 
            
                40.90
             |                     
            
                8.00
             |                                 
            
                257,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2008
             | 
            
                -2.10 / -4.88%
             |             
            
                40.90
             |           
            
                40.90
             |               
            
                40.90
             |                           
            
                40.90
             | 
            
                40.90
             |                     
            
                8.00
             |                                 
            
                167,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2008
             | 
            
                +0.60 / +1.42%
             |             
            
                44.50
             |           
            
                44.50
             |               
            
                42.50
             |                           
            
                43.00
             | 
            
                43.00
             |                     
            
                8.41
             |                                 
            
                823,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2008
             | 
            
                +2.00 / +4.95%
             |             
            
                42.40
             |           
            
                42.40
             |               
            
                42.40
             |                           
            
                42.40
             | 
            
                42.40
             |                     
            
                8.29
             |                                 
            
                153,610
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2008
             | 
            
                +1.90 / +4.94%
             |             
            
                40.40
             |           
            
                40.40
             |               
            
                40.40
             |                           
            
                40.40
             | 
            
                40.40
             |                     
            
                7.90
             |                                 
            
                135,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2008
             | 
            
                -1.40 / -3.51%
             |             
            
                41.00
             |           
            
                41.50
             |               
            
                38.30
             |                           
            
                38.50
             | 
            
                38.50
             |                     
            
                7.53
             |                                 
            
                426,540
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2008
             | 
            
                +1.90 / +5.00%
             |             
            
                36.10
             |           
            
                39.90
             |               
            
                36.10
             |                           
            
                39.90
             | 
            
                39.90
             |                     
            
                7.80
             |                                 
            
                585,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2008
             | 
            
                -1.90 / -4.76%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                7.43
             |                                 
            
                66,410
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2008
             | 
            
                -2.10 / -5.00%
             |             
            
                39.90
             |           
            
                41.00
             |               
            
                39.90
             |                           
            
                39.90
             | 
            
                39.90
             |                     
            
                7.80
             |                                 
            
                265,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2008
             | 
            
                -1.90 / -4.33%
             |             
            
                43.90
             |           
            
                43.90
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                8.21
             |                                 
            
                376,660
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2008
             | 
            
                +1.20 / +2.81%
             |             
            
                43.90
             |           
            
                43.90
             |               
            
                43.70
             |                           
            
                43.90
             | 
            
                43.90
             |                     
            
                8.58
             |                                 
            
                600,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2008
             | 
            
                +1.20 / +2.89%
             |             
            
                40.30
             |           
            
                42.70
             |               
            
                40.30
             |                           
            
                42.70
             | 
            
                42.70
             |                     
            
                8.35
             |                                 
            
                412,480
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2008
             | 
            
                -0.50 / -1.19%
             |             
            
                42.10
             |           
            
                43.00
             |               
            
                40.80
             |                           
            
                41.50
             | 
            
                41.50
             |                     
            
                8.11
             |                                 
            
                272,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2008
             | 
            
                +1.20 / +2.94%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                41.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                8.21
             |                                 
            
                388,970
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2008
             | 
            
                +0.10 / +0.25%
             |             
            
                41.90
             |           
            
                41.90
             |               
            
                40.60
             |                           
            
                40.80
             | 
            
                40.80
             |                     
            
                7.98
             |                                 
            
                1,382,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2008
             | 
            
                -1.20 / -2.86%
             |             
            
                40.70
             |           
            
                40.70
             |               
            
                40.70
             |                           
            
                40.70
             | 
            
                40.70
             |                     
            
                7.96
             |                                 
            
                8,990
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2008
             | 
            
                -1.20 / -2.78%
             |             
            
                41.90
             |           
            
                41.90
             |               
            
                41.90
             |                           
            
                41.90
             | 
            
                41.90
             |                     
            
                8.19
             |                                 
            
                23,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2008
             | 
            
                -1.30 / -2.93%
             |             
            
                43.10
             |           
            
                43.10
             |               
            
                43.10
             |                           
            
                43.10
             | 
            
                43.10
             |                     
            
                8.43
             |                                 
            
                14,160
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2008
             | 
            
                -1.30 / -2.84%
             |             
            
                44.40
             |           
            
                44.40
             |               
            
                44.40
             |                           
            
                44.40
             | 
            
                44.40
             |                     
            
                8.68
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2008
             | 
            
                -1.40 / -2.97%
             |             
            
                45.70
             |           
            
                45.70
             |               
            
                45.70
             |                           
            
                45.70
             | 
            
                45.70
             |                     
            
                8.93
             |                                 
            
                2,510
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2008
             | 
            
                -1.40 / -2.89%
             |             
            
                47.10
             |           
            
                47.10
             |               
            
                47.10
             |                           
            
                47.10
             | 
            
                47.10
             |                     
            
                9.21
             |                                 
            
                11,680
             |  
            
                 
             |                                                              
             
    
         
    
    
 |