| 
                 
                    Closing price on 2/25/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    26.00 | 
                 
                
                    | High | 
                    29.20 | 
                 
                
                    | Low | 
                    25.00 | 
                     
                
                    | Volume | 
                    35,300 | 
                                 
                
                    | Split-adjusted Price | 
                    28.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/25/2008
             | 
            
                -0.70 / -2.43%
             |             
            
                26.00
             |           
            
                29.20
             |               
            
                25.00
             |                           
            
                28.10
             | 
            
                28.10
             |                     
            
                28.10
             |                                 
            
                35,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2008
             | 
            
                0.00 / 0.00%
             |             
            
                26.00
             |           
            
                28.80
             |               
            
                26.00
             |                           
            
                28.80
             | 
            
                28.80
             |                     
            
                28.80
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2008
             | 
            
                -2.20 / -7.10%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.80
             |                           
            
                28.80
             | 
            
                28.80
             |                     
            
                28.80
             |                                 
            
                8,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2008
             | 
            
                -3.00 / -8.82%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                31.00
             |                                 
            
                12,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2008
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                35.50
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                34.00
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2008
             | 
            
                -2.30 / -6.34%
             |             
            
                33.50
             |           
            
                34.20
             |               
            
                33.20
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                34.00
             |                                 
            
                24,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2008
             | 
            
                -0.70 / -1.89%
             |             
            
                37.00
             |           
            
                38.40
             |               
            
                36.10
             |                           
            
                36.30
             | 
            
                36.30
             |                     
            
                36.30
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2008
             | 
            
                -1.00 / -2.63%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                36.50
             |                           
            
                37.00
             | 
            
                37.00
             |                     
            
                37.00
             |                                 
            
                13,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2008
             | 
            
                -1.00 / -2.56%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                38.00
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2008
             | 
            
                -1.00 / -2.50%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                39.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                39.00
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2008
             | 
            
                0.00 / 0.00%
             |             
            
                40.20
             |           
            
                40.20
             |               
            
                38.50
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                40.00
             |                                 
            
                24,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2008
             | 
            
                -2.50 / -5.88%
             |             
            
                45.50
             |           
            
                45.50
             |               
            
                39.00
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                40.00
             |                                 
            
                21,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2008
             | 
            
                +3.50 / +8.97%
             |             
            
                40.20
             |           
            
                42.50
             |               
            
                40.00
             |                           
            
                42.50
             | 
            
                42.50
             |                     
            
                42.50
             |                                 
            
                51,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2008
             | 
            
                +1.00 / +2.63%
             |             
            
                38.00
             |           
            
                39.00
             |               
            
                38.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                39.00
             |                                 
            
                12,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2008
             | 
            
                0.00 / 0.00%
             |             
            
                35.80
             |           
            
                38.00
             |               
            
                35.80
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                38.00
             |                                 
            
                9,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2008
             | 
            
                +1.50 / +4.11%
             |             
            
                36.60
             |           
            
                38.20
             |               
            
                36.60
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                38.00
             |                                 
            
                8,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2008
             | 
            
                -0.40 / -1.08%
             |             
            
                37.40
             |           
            
                39.00
             |               
            
                35.10
             |                           
            
                36.50
             | 
            
                36.50
             |                     
            
                36.50
             |                                 
            
                30,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2008
             | 
            
                +0.30 / +0.82%
             |             
            
                37.50
             |           
            
                37.50
             |               
            
                34.20
             |                           
            
                36.90
             | 
            
                36.90
             |                     
            
                36.90
             |                                 
            
                9,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2008
             | 
            
                -2.40 / -6.15%
             |             
            
                35.80
             |           
            
                37.90
             |               
            
                35.80
             |                           
            
                36.60
             | 
            
                36.60
             |                     
            
                36.60
             |                                 
            
                7,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2008
             | 
            
                0.00 / 0.00%
             |             
            
                37.80
             |           
            
                39.10
             |               
            
                37.80
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                39.00
             |                                 
            
                17,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2008
             | 
            
                +1.00 / +2.63%
             |             
            
                36.80
             |           
            
                40.00
             |               
            
                36.80
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                39.00
             |                                 
            
                32,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2008
             | 
            
                -0.20 / -0.52%
             |             
            
                36.50
             |           
            
                40.00
             |               
            
                36.50
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                38.00
             |                                 
            
                18,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2008
             | 
            
                +2.30 / +6.41%
             |             
            
                34.50
             |           
            
                38.20
             |               
            
                34.50
             |                           
            
                38.20
             | 
            
                38.20
             |                     
            
                38.20
             |                                 
            
                15,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2008
             | 
            
                -2.10 / -5.53%
             |             
            
                34.40
             |           
            
                37.00
             |               
            
                34.40
             |                           
            
                35.90
             | 
            
                35.90
             |                     
            
                35.90
             |                                 
            
                15,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2008
             | 
            
                -1.50 / -3.80%
             |             
            
                37.40
             |           
            
                41.50
             |               
            
                37.40
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                38.00
             |                                 
            
                30,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2008
             | 
            
                -0.50 / -1.25%
             |             
            
                39.10
             |           
            
                42.40
             |               
            
                39.10
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                39.50
             |                                 
            
                22,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2008
             | 
            
                +1.90 / +4.99%
             |             
            
                39.00
             |           
            
                40.00
             |               
            
                39.00
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                40.00
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2008
             | 
            
                -0.90 / -2.31%
             |             
            
                38.00
             |           
            
                41.00
             |               
            
                38.00
             |                           
            
                38.10
             | 
            
                38.10
             |                     
            
                38.10
             |                                 
            
                17,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2008
             | 
            
                -0.10 / -0.26%
             |             
            
                36.00
             |           
            
                42.00
             |               
            
                36.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                39.00
             |                                 
            
                30,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2008
             | 
            
                -3.40 / -8.00%
             |             
            
                38.03
             |           
            
                42.30
             |               
            
                38.00
             |                           
            
                39.10
             | 
            
                39.10
             |                     
            
                39.10
             |                                 
            
                20,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |