| 
                 
                    Closing price on 2/23/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.90 | 
                 
                
                    | High | 
                    24.90 | 
                 
                
                    | Low | 
                    24.90 | 
                     
                
                    | Volume | 
                    100 | 
                                 
                
                    | Split-adjusted Price | 
                    2.54 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DBT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/23/2011
             | 
            
                +0.90 / +3.75%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                2.54
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                2.45
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                2.45
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2011
             | 
            
                -0.80 / -3.23%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.08
             |                     
            
                2.45
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                12,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2011
             | 
            
                +0.30 / +1.22%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                2.53
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                2.50
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                2.50
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2011
             | 
            
                -0.10 / -0.41%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.52
             |                     
            
                2.50
             |                                 
            
                8,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2011
             | 
            
                +0.10 / +0.41%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                2.51
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2011
             | 
            
                -0.10 / -0.41%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.58
             |                     
            
                2.50
             |                                 
            
                10,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                2.51
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2011
             | 
            
                +0.10 / +0.41%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                2.51
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2011
             | 
            
                -0.20 / -0.81%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.57
             |                     
            
                2.50
             |                                 
            
                5,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2011
             | 
            
                +0.10 / +0.41%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.71
             |                     
            
                2.52
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                2.51
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2011
             | 
            
                -0.10 / -0.40%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                2.51
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                2.52
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2011
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                2.52
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2011
             | 
            
                -0.30 / -1.20%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.81
             |                     
            
                2.52
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2011
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                2.55
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2011
             | 
            
                +0.10 / +0.40%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                2.55
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2011
             | 
            
                -0.60 / -2.35%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                25.38
             |                     
            
                2.54
             |                                 
            
                7,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |