| 
                 
                    Closing price on 5/25/2007
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    80.00 | 
                 
                
                    | High | 
                    81.00 | 
                 
                
                    | Low | 
                    80.00 | 
                     
                
                    | Volume | 
                    75,320 | 
                                 
                
                    | Split-adjusted Price | 
                    7.48 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/25/2007
             | 
            
                +1.00 / +1.25%
             |             
            
                80.00
             |           
            
                81.00
             |               
            
                80.00
             |                           
            
                81.00
             | 
            
                81.00
             |                     
            
                7.48
             |                                 
            
                75,320
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2007
             | 
            
                -3.00 / -3.61%
             |             
            
                80.00
             |           
            
                81.50
             |               
            
                80.00
             |                           
            
                80.00
             | 
            
                80.00
             |                     
            
                7.39
             |                                 
            
                79,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2007
             | 
            
                +1.50 / +1.84%
             |             
            
                83.00
             |           
            
                85.50
             |               
            
                83.00
             |                           
            
                83.00
             | 
            
                83.00
             |                     
            
                7.67
             |                                 
            
                186,220
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2007
             | 
            
                +3.50 / +4.49%
             |             
            
                81.50
             |           
            
                81.50
             |               
            
                81.50
             |                           
            
                81.50
             | 
            
                81.50
             |                     
            
                7.53
             |                                 
            
                43,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2007
             | 
            
                +3.00 / +4.00%
             |             
            
                75.00
             |           
            
                78.00
             |               
            
                75.00
             |                           
            
                78.00
             | 
            
                78.00
             |                     
            
                7.21
             |                                 
            
                59,990
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2007
             | 
            
                0.00 / 0.00%
             |             
            
                75.00
             |           
            
                75.50
             |               
            
                75.00
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                6.93
             |                                 
            
                39,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2007
             | 
            
                +2.50 / +3.45%
             |             
            
                72.50
             |           
            
                75.00
             |               
            
                72.00
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                6.93
             |                                 
            
                27,440
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2007
             | 
            
                -2.50 / -3.33%
             |             
            
                72.50
             |           
            
                74.00
             |               
            
                72.50
             |                           
            
                72.50
             | 
            
                72.50
             |                     
            
                6.70
             |                                 
            
                26,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2007
             | 
            
                +1.50 / +2.04%
             |             
            
                74.00
             |           
            
                75.00
             |               
            
                74.00
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                6.93
             |                                 
            
                92,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2007
             | 
            
                +1.50 / +2.08%
             |             
            
                72.50
             |           
            
                73.50
             |               
            
                72.50
             |                           
            
                73.50
             | 
            
                73.50
             |                     
            
                6.79
             |                                 
            
                45,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2007
             | 
            
                +2.00 / +2.86%
             |             
            
                70.00
             |           
            
                72.00
             |               
            
                70.00
             |                           
            
                72.00
             | 
            
                72.00
             |                     
            
                6.65
             |                                 
            
                22,470
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2007
             | 
            
                0.00 / 0.00%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                6.47
             |                                 
            
                104,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2007
             | 
            
                -3.00 / -4.11%
             |             
            
                70.00
             |           
            
                73.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                6.47
             |                                 
            
                22,850
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2007
             | 
            
                +2.50 / +3.55%
             |             
            
                71.00
             |           
            
                73.00
             |               
            
                71.00
             |                           
            
                73.00
             | 
            
                73.00
             |                     
            
                6.74
             |                                 
            
                120,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2007
             | 
            
                +2.50 / +3.68%
             |             
            
                69.00
             |           
            
                70.50
             |               
            
                69.00
             |                           
            
                70.50
             | 
            
                70.50
             |                     
            
                6.51
             |                                 
            
                40,330
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2007
             | 
            
                -2.00 / -2.86%
             |             
            
                68.00
             |           
            
                69.00
             |               
            
                67.50
             |                           
            
                68.00
             | 
            
                68.00
             |                     
            
                6.28
             |                                 
            
                30,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2007
             | 
            
                -1.00 / -1.41%
             |             
            
                70.00
             |           
            
                71.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                6.47
             |                                 
            
                7,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2007
             | 
            
                +3.00 / +4.41%
             |             
            
                68.00
             |           
            
                71.00
             |               
            
                67.00
             |                           
            
                71.00
             | 
            
                71.00
             |                     
            
                6.56
             |                                 
            
                87,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2007
             | 
            
                +2.00 / +3.03%
             |             
            
                67.00
             |           
            
                69.00
             |               
            
                67.00
             |                           
            
                68.00
             | 
            
                68.00
             |                     
            
                6.28
             |                                 
            
                5,270
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2007
             | 
            
                -3.00 / -4.35%
             |             
            
                66.00
             |           
            
                66.00
             |               
            
                66.00
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                6.10
             |                                 
            
                261,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2007
             | 
            
                -3.50 / -4.83%
             |             
            
                69.00
             |           
            
                69.00
             |               
            
                69.00
             |                           
            
                69.00
             | 
            
                69.00
             |                     
            
                6.37
             |                                 
            
                26,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2007
             | 
            
                -1.00 / -1.36%
             |             
            
                72.50
             |           
            
                73.50
             |               
            
                71.00
             |                           
            
                72.50
             | 
            
                72.50
             |                     
            
                6.70
             |                                 
            
                79,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2007
             | 
            
                +3.50 / +5.00%
             |             
            
                73.50
             |           
            
                73.50
             |               
            
                73.50
             |                           
            
                73.50
             | 
            
                73.50
             |                     
            
                6.79
             |                                 
            
                35,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2007
             | 
            
                +3.00 / +4.48%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                6.47
             |                                 
            
                14,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2007
             | 
            
                -1.50 / -2.19%
             |             
            
                67.00
             |           
            
                68.50
             |               
            
                66.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                6.19
             |                                 
            
                48,880
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2007
             | 
            
                -3.50 / -4.86%
             |             
            
                68.50
             |           
            
                71.00
             |               
            
                68.50
             |                           
            
                68.50
             | 
            
                68.50
             |                     
            
                6.33
             |                                 
            
                54,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2007
             | 
            
                -2.00 / -2.70%
             |             
            
                72.00
             |           
            
                74.00
             |               
            
                72.00
             |                           
            
                72.00
             | 
            
                72.00
             |                     
            
                6.65
             |                                 
            
                44,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2007
             | 
            
                -2.50 / -3.27%
             |             
            
                74.00
             |           
            
                76.00
             |               
            
                74.00
             |                           
            
                74.00
             | 
            
                74.00
             |                     
            
                6.84
             |                                 
            
                47,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2007
             | 
            
                0.00 / 0.00%
             |             
            
                76.50
             |           
            
                76.50
             |               
            
                75.50
             |                           
            
                76.50
             | 
            
                76.50
             |                     
            
                7.07
             |                                 
            
                32,880
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2007
             | 
            
                -0.50 / -0.65%
             |             
            
                76.50
             |           
            
                77.50
             |               
            
                76.50
             |                           
            
                76.50
             | 
            
                76.50
             |                     
            
                7.07
             |                                 
            
                22,080
             |  
            
                 
             |                                                              
             
    
         
    
    
 |