| 
                 
                    Closing price on 1/31/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    51.50 | 
                 
                
                    | High | 
                    53.00 | 
                 
                
                    | Low | 
                    51.00 | 
                     
                
                    | Volume | 
                    35,930 | 
                                 
                
                    | Split-adjusted Price | 
                    6.84 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2008
             | 
            
                +2.00 / +4.17%
             |             
            
                50.00
             |           
            
                50.00
             |               
            
                49.50
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                6.45
             |                                 
            
                39,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2008
             | 
            
                -2.50 / -4.95%
             |             
            
                49.00
             |           
            
                49.50
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                6.19
             |                                 
            
                27,990
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2008
             | 
            
                -2.00 / -3.81%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                50.50
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                6.52
             |                                 
            
                23,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2008
             | 
            
                +1.00 / +1.94%
             |             
            
                51.50
             |           
            
                53.00
             |               
            
                51.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                6.78
             |                                 
            
                24,630
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2008
             | 
            
                -2.50 / -4.63%
             |             
            
                52.50
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                6.65
             |                                 
            
                25,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2008
             | 
            
                -1.50 / -2.70%
             |             
            
                54.50
             |           
            
                55.00
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                6.97
             |                                 
            
                16,760
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2008
             | 
            
                +1.00 / +1.83%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                55.50
             |                           
            
                55.50
             | 
            
                55.50
             |                     
            
                7.16
             |                                 
            
                10,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2008
             | 
            
                -2.50 / -4.39%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                54.50
             |                           
            
                54.50
             | 
            
                54.50
             |                     
            
                7.03
             |                                 
            
                12,590
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2008
             | 
            
                -1.00 / -1.72%
             |             
            
                56.50
             |           
            
                57.50
             |               
            
                56.50
             |                           
            
                57.00
             | 
            
                57.00
             |                     
            
                7.36
             |                                 
            
                11,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2008
             | 
            
                -0.50 / -0.85%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                57.50
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                7.49
             |                                 
            
                14,620
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2008
             | 
            
                -1.50 / -2.50%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                7.55
             |                                 
            
                11,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2007
             | 
            
                -1.00 / -1.64%
             |             
            
                60.00
             |           
            
                60.50
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                7.74
             |                                 
            
                10,440
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2007
             | 
            
                +1.00 / +1.67%
             |             
            
                60.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                7.87
             |                                 
            
                14,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2007
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                61.00
             |               
            
                59.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                7.74
             |                                 
            
                13,020
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2007
             | 
            
                -0.50 / -0.83%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                7.74
             |                                 
            
                18,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2007
             | 
            
                0.00 / 0.00%
             |             
            
                61.00
             |           
            
                61.50
             |               
            
                60.00
             |                           
            
                60.50
             | 
            
                60.50
             |                     
            
                7.81
             |                                 
            
                13,520
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2007
             | 
            
                +1.00 / +1.68%
             |             
            
                60.00
             |           
            
                60.50
             |               
            
                60.00
             |                           
            
                60.50
             | 
            
                60.50
             |                     
            
                7.81
             |                                 
            
                21,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2007
             | 
            
                -1.50 / -2.46%
             |             
            
                61.00
             |           
            
                62.00
             |               
            
                59.50
             |                           
            
                59.50
             | 
            
                59.50
             |                     
            
                7.68
             |                                 
            
                14,080
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2007
             | 
            
                +2.50 / +4.27%
             |             
            
                60.50
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                7.87
             |                                 
            
                21,450
             |  
            
                 
             |                                                              
             
    
         
    
    
 |