| 
                 
                    Closing price on 7/9/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    15.20 | 
                 
                
                    | High | 
                    15.80 | 
                 
                
                    | Low | 
                    15.20 | 
                     
                
                    | Volume | 
                    14,190 | 
                                 
                
                    | Split-adjusted Price | 
                    7.02 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DTT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/9/2008
             | 
            
                +0.20 / +1.28%
             |             
            
                15.20
             |           
            
                15.80
             |               
            
                15.20
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                7.02
             |                                 
            
                14,190
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2008
             | 
            
                +0.30 / +1.96%
             |             
            
                14.90
             |           
            
                15.60
             |               
            
                14.90
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                6.93
             |                                 
            
                11,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2008
             | 
            
                -0.40 / -2.55%
             |             
            
                15.30
             |           
            
                16.00
             |               
            
                15.30
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                6.79
             |                                 
            
                8,960
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2008
             | 
            
                +0.40 / +2.61%
             |             
            
                15.00
             |           
            
                15.70
             |               
            
                15.00
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                6.97
             |                                 
            
                17,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2008
             | 
            
                -0.30 / -1.92%
             |             
            
                15.20
             |           
            
                15.60
             |               
            
                15.20
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                6.79
             |                                 
            
                7,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2008
             | 
            
                +0.20 / +1.30%
             |             
            
                15.40
             |           
            
                15.80
             |               
            
                15.00
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                6.93
             |                                 
            
                16,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2008
             | 
            
                +0.40 / +2.67%
             |             
            
                14.60
             |           
            
                15.40
             |               
            
                14.60
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                6.84
             |                                 
            
                9,210
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2008
             | 
            
                +0.20 / +1.35%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.66
             |                                 
            
                650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2008
             | 
            
                +0.30 / +2.07%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                6.57
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2008
             | 
            
                +0.30 / +2.11%
             |             
            
                14.60
             |           
            
                14.60
             |               
            
                14.50
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                6.44
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2008
             | 
            
                +0.40 / +2.90%
             |             
            
                14.20
             |           
            
                14.20
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                6.31
             |                                 
            
                5,620
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2008
             | 
            
                +0.40 / +2.99%
             |             
            
                13.00
             |           
            
                13.80
             |               
            
                13.00
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                6.13
             |                                 
            
                2,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2008
             | 
            
                +0.10 / +0.75%
             |             
            
                13.00
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                5.95
             |                                 
            
                4,890
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2008
             | 
            
                -0.40 / -2.92%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                5.91
             |                                 
            
                2,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2008
             | 
            
                -0.40 / -2.84%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                6.08
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2008
             | 
            
                -0.20 / -1.40%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                6.26
             |                                 
            
                3,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2008
             | 
            
                +0.20 / +1.42%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                6.35
             |                                 
            
                130
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2008
             | 
            
                +0.20 / +1.44%
             |             
            
                14.10
             |           
            
                14.10
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                6.26
             |                                 
            
                910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2008
             | 
            
                +0.20 / +1.46%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                6.17
             |                                 
            
                1,990
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2008
             | 
            
                +0.20 / +1.48%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                6.08
             |                                 
            
                4,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2008
             | 
            
                +0.20 / +1.50%
             |             
            
                13.10
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.00
             |                                 
            
                7,240
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2008
             | 
            
                -0.20 / -1.48%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                5.91
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2008
             | 
            
                -0.20 / -1.46%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.00
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2008
             | 
            
                -0.20 / -1.44%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                6.08
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2008
             | 
            
                -0.20 / -1.42%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                6.17
             |                                 
            
                3,170
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2008
             | 
            
                -0.20 / -1.40%
             |             
            
                14.10
             |           
            
                14.10
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                6.26
             |                                 
            
                2,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2008
             | 
            
                -0.20 / -1.38%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                6.35
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2008
             | 
            
                -0.20 / -1.36%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.50
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                6.44
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2008
             | 
            
                -0.30 / -2.00%
             |             
            
                15.10
             |           
            
                15.10
             |               
            
                14.70
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                6.53
             |                                 
            
                1,360
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2008
             | 
            
                -0.10 / -0.66%
             |             
            
                15.40
             |           
            
                15.40
             |               
            
                14.80
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.66
             |                                 
            
                3,630
             |  
            
                 
             |                                                              
             
    
         
    
    
 |