| 
                 
                    Closing price on 10/13/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.20 | 
                 
                
                    | High | 
                    11.40 | 
                 
                
                    | Low | 
                    11.20 | 
                     
                
                    | Volume | 
                    2,800 | 
                                 
                
                    | Split-adjusted Price | 
                    5.25 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DTT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/13/2008
             | 
            
                0.00 / 0.00%
             |             
            
                11.20
             |           
            
                11.40
             |               
            
                11.20
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                5.25
             |                                 
            
                2,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2008
             | 
            
                -0.60 / -5.00%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                5.25
             |                                 
            
                1,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2008
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.53
             |                                 
            
                5,510
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2008
             | 
            
                -0.20 / -1.64%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.53
             |                                 
            
                10,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2008
             | 
            
                -0.50 / -3.94%
             |             
            
                12.60
             |           
            
                12.60
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                5.62
             |                                 
            
                6,690
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2008
             | 
            
                -0.60 / -4.51%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                5.85
             |                                 
            
                5,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2008
             | 
            
                +0.30 / +2.31%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                12.50
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.13
             |                                 
            
                5,280
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2008
             | 
            
                -0.30 / -2.26%
             |             
            
                13.30
             |           
            
                13.80
             |               
            
                12.80
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                5.99
             |                                 
            
                11,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                12.70
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.13
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2008
             | 
            
                -0.70 / -5.00%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.13
             |                                 
            
                80
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2008
             | 
            
                +0.50 / +3.70%
             |             
            
                13.00
             |           
            
                14.00
             |               
            
                13.00
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                6.45
             |                                 
            
                2,190
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.22
             |                                 
            
                4,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2008
             | 
            
                +0.60 / +4.65%
             |             
            
                12.30
             |           
            
                13.50
             |               
            
                12.30
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.22
             |                                 
            
                16,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2008
             | 
            
                -0.60 / -4.44%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                5.95
             |                                 
            
                8,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2008
             | 
            
                -0.70 / -4.93%
             |             
            
                13.50
             |           
            
                14.90
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.22
             |                                 
            
                13,570
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2008
             | 
            
                +0.60 / +4.41%
             |             
            
                14.20
             |           
            
                14.20
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                6.54
             |                                 
            
                26,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2008
             | 
            
                +0.60 / +4.62%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                6.27
             |                                 
            
                12,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.40
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                5.99
             |                                 
            
                19,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2008
             | 
            
                -0.60 / -4.41%
             |             
            
                13.00
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                5.99
             |                                 
            
                10,510
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2008
             | 
            
                -0.70 / -4.90%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                6.27
             |                                 
            
                8,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2008
             | 
            
                -0.70 / -4.67%
             |             
            
                14.30
             |           
            
                15.00
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                6.59
             |                                 
            
                14,860
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2008
             | 
            
                -0.70 / -4.46%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.91
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2008
             | 
            
                -0.80 / -4.85%
             |             
            
                15.70
             |           
            
                15.80
             |               
            
                15.70
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                7.24
             |                                 
            
                17,590
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2008
             | 
            
                +0.50 / +3.13%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                15.20
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                7.60
             |                                 
            
                24,960
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2008
             | 
            
                +0.10 / +0.63%
             |             
            
                16.60
             |           
            
                16.60
             |               
            
                15.70
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                7.37
             |                                 
            
                37,630
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2008
             | 
            
                +0.70 / +4.61%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                14.60
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                7.33
             |                                 
            
                36,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2008
             | 
            
                +0.70 / +4.83%
             |             
            
                14.50
             |           
            
                15.20
             |               
            
                14.00
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                7.01
             |                                 
            
                37,190
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2008
             | 
            
                +0.10 / +0.69%
             |             
            
                13.70
             |           
            
                15.10
             |               
            
                13.70
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                6.68
             |                                 
            
                10,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2008
             | 
            
                +0.60 / +4.35%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.00
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                6.64
             |                                 
            
                26,820
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2008
             | 
            
                -0.50 / -3.50%
             |             
            
                13.60
             |           
            
                14.00
             |               
            
                13.60
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                6.36
             |                                 
            
                6,640
             |  
            
                 
             |                                                              
             
    
         
    
    
 |