| 
                 
                    Closing price on 3/6/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    38.60 | 
                 
                
                    | High | 
                    38.60 | 
                 
                
                    | Low | 
                    38.60 | 
                     
                
                    | Volume | 
                    15,880 | 
                                 
                
                    | Split-adjusted Price | 
                    4.98 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/6/2008
             | 
            
                +1.80 / +4.89%
             |             
            
                38.60
             |           
            
                38.60
             |               
            
                38.60
             |                           
            
                38.60
             | 
            
                38.60
             |                     
            
                4.98
             |                                 
            
                15,880
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2008
             | 
            
                -1.90 / -4.91%
             |             
            
                36.80
             |           
            
                36.80
             |               
            
                36.80
             |                           
            
                36.80
             | 
            
                36.80
             |                     
            
                4.75
             |                                 
            
                19,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2008
             | 
            
                -2.00 / -4.91%
             |             
            
                38.70
             |           
            
                38.70
             |               
            
                38.70
             |                           
            
                38.70
             | 
            
                38.70
             |                     
            
                4.99
             |                                 
            
                6,750
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2008
             | 
            
                -2.10 / -4.91%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                40.70
             |                           
            
                40.70
             | 
            
                40.70
             |                     
            
                5.25
             |                                 
            
                21,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2008
             | 
            
                -2.20 / -4.89%
             |             
            
                46.50
             |           
            
                46.50
             |               
            
                42.80
             |                           
            
                42.80
             | 
            
                42.80
             |                     
            
                5.52
             |                                 
            
                37,130
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2008
             | 
            
                -2.00 / -4.26%
             |             
            
                46.60
             |           
            
                47.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                5.81
             |                                 
            
                26,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2008
             | 
            
                -0.50 / -1.05%
             |             
            
                46.60
             |           
            
                47.50
             |               
            
                46.60
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                6.07
             |                                 
            
                6,690
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2008
             | 
            
                -2.50 / -5.00%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                47.50
             |                           
            
                47.50
             | 
            
                47.50
             |                     
            
                6.13
             |                                 
            
                21,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2008
             | 
            
                +2.30 / +4.82%
             |             
            
                49.00
             |           
            
                50.00
             |               
            
                49.00
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                6.45
             |                                 
            
                33,830
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2008
             | 
            
                +2.10 / +4.61%
             |             
            
                43.40
             |           
            
                47.70
             |               
            
                43.40
             |                           
            
                47.70
             | 
            
                47.70
             |                     
            
                6.16
             |                                 
            
                25,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2008
             | 
            
                -2.40 / -5.00%
             |             
            
                45.70
             |           
            
                45.70
             |               
            
                45.60
             |                           
            
                45.60
             | 
            
                45.60
             |                     
            
                5.89
             |                                 
            
                29,530
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2008
             | 
            
                -2.50 / -4.95%
             |             
            
                48.00
             |           
            
                50.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                6.19
             |                                 
            
                31,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2008
             | 
            
                +0.60 / +1.20%
             |             
            
                48.00
             |           
            
                50.50
             |               
            
                48.00
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                6.52
             |                                 
            
                10,410
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2008
             | 
            
                -2.60 / -4.95%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.90
             |                           
            
                49.90
             | 
            
                49.90
             |                     
            
                6.44
             |                                 
            
                28,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2008
             | 
            
                -0.50 / -0.94%
             |             
            
                53.00
             |           
            
                53.50
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                6.78
             |                                 
            
                17,340
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2008
             | 
            
                +0.50 / +0.95%
             |             
            
                52.50
             |           
            
                55.00
             |               
            
                52.50
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                6.84
             |                                 
            
                17,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2008
             | 
            
                -2.50 / -4.55%
             |             
            
                54.50
             |           
            
                54.50
             |               
            
                52.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                6.78
             |                                 
            
                11,860
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2008
             | 
            
                -0.50 / -0.90%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                53.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                7.10
             |                                 
            
                29,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2008
             | 
            
                +2.50 / +4.72%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                55.50
             |                           
            
                55.50
             | 
            
                55.50
             |                     
            
                7.16
             |                                 
            
                27,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2008
             | 
            
                +1.50 / +2.91%
             |             
            
                51.50
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                6.84
             |                                 
            
                35,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2008
             | 
            
                +2.20 / +4.46%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                6.65
             |                                 
            
                12,470
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2008
             | 
            
                +2.30 / +4.89%
             |             
            
                48.40
             |           
            
                49.30
             |               
            
                48.00
             |                           
            
                49.30
             | 
            
                49.30
             |                     
            
                6.36
             |                                 
            
                30,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2008
             | 
            
                +0.20 / +0.43%
             |             
            
                47.00
             |           
            
                47.10
             |               
            
                46.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                6.07
             |                                 
            
                28,520
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2008
             | 
            
                +0.90 / +1.96%
             |             
            
                45.90
             |           
            
                46.80
             |               
            
                45.80
             |                           
            
                46.80
             | 
            
                46.80
             |                     
            
                6.04
             |                                 
            
                13,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2008
             | 
            
                -0.70 / -1.50%
             |             
            
                47.50
             |           
            
                48.00
             |               
            
                45.90
             |                           
            
                45.90
             | 
            
                45.90
             |                     
            
                5.92
             |                                 
            
                19,960
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2008
             | 
            
                -2.40 / -4.90%
             |             
            
                47.80
             |           
            
                48.00
             |               
            
                46.60
             |                           
            
                46.60
             | 
            
                46.60
             |                     
            
                6.01
             |                                 
            
                29,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2008
             | 
            
                -1.00 / -2.00%
             |             
            
                48.00
             |           
            
                49.50
             |               
            
                48.00
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                6.32
             |                                 
            
                15,790
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2008
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                50.00
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                6.45
             |                                 
            
                29,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2008
             | 
            
                +2.00 / +4.17%
             |             
            
                48.00
             |           
            
                50.00
             |               
            
                48.00
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                6.45
             |                                 
            
                11,110
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2008
             | 
            
                -2.00 / -4.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                6.19
             |                                 
            
                73,070
             |  
            
                 
             |                                                              
             
    
         
    
    
 |