| 
                 
                    Closing price on 4/11/2006
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    86.00 | 
                 
                
                    | High | 
                    86.00 | 
                 
                
                    | Low | 
                    86.00 | 
                     
                
                    | Volume | 
                    29,940 | 
                                 
                
                    | Split-adjusted Price | 
                    5.39 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/11/2006
             | 
            
                -2.00 / -2.27%
             |             
            
                86.00
             |           
            
                86.00
             |               
            
                86.00
             |                           
            
                86.00
             | 
            
                86.00
             |                     
            
                5.39
             |                                 
            
                29,940
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2006
             | 
            
                0.00 / 0.00%
             |             
            
                88.00
             |           
            
                88.00
             |               
            
                88.00
             |                           
            
                88.00
             | 
            
                88.00
             |                     
            
                5.51
             |                                 
            
                29,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2006
             | 
            
                +2.00 / +2.33%
             |             
            
                88.00
             |           
            
                88.00
             |               
            
                88.00
             |                           
            
                88.00
             | 
            
                88.00
             |                     
            
                5.51
             |                                 
            
                29,040
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2006
             | 
            
                +1.00 / +1.18%
             |             
            
                85.00
             |           
            
                86.00
             |               
            
                85.00
             |                           
            
                86.00
             | 
            
                86.00
             |                     
            
                5.39
             |                                 
            
                61,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2006
             | 
            
                +4.00 / +4.94%
             |             
            
                81.00
             |           
            
                85.00
             |               
            
                80.00
             |                           
            
                85.00
             | 
            
                85.00
             |                     
            
                5.33
             |                                 
            
                67,090
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2006
             | 
            
                -4.00 / -4.71%
             |             
            
                85.00
             |           
            
                89.00
             |               
            
                81.00
             |                           
            
                81.00
             | 
            
                81.00
             |                     
            
                5.07
             |                                 
            
                66,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2006
             | 
            
                +4.00 / +4.94%
             |             
            
                85.00
             |           
            
                85.00
             |               
            
                85.00
             |                           
            
                85.00
             | 
            
                85.00
             |                     
            
                5.33
             |                                 
            
                31,350
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2006
             | 
            
                +3.50 / +4.52%
             |             
            
                81.00
             |           
            
                81.00
             |               
            
                81.00
             |                           
            
                81.00
             | 
            
                81.00
             |                     
            
                5.07
             |                                 
            
                30,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2006
             | 
            
                +2.50 / +3.33%
             |             
            
                77.00
             |           
            
                77.50
             |               
            
                77.00
             |                           
            
                77.50
             | 
            
                77.50
             |                     
            
                4.86
             |                                 
            
                34,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2006
             | 
            
                +3.50 / +4.90%
             |             
            
                75.00
             |           
            
                75.00
             |               
            
                75.00
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                4.70
             |                                 
            
                21,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2006
             | 
            
                +0.50 / +0.70%
             |             
            
                71.50
             |           
            
                72.00
             |               
            
                71.50
             |                           
            
                71.50
             | 
            
                71.50
             |                     
            
                4.48
             |                                 
            
                23,860
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2006
             | 
            
                +1.00 / +1.43%
             |             
            
                71.00
             |           
            
                71.00
             |               
            
                71.00
             |                           
            
                71.00
             | 
            
                71.00
             |                     
            
                4.45
             |                                 
            
                29,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2006
             | 
            
                +0.50 / +0.72%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                4.39
             |                                 
            
                23,620
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2006
             | 
            
                +1.50 / +2.21%
             |             
            
                69.00
             |           
            
                69.50
             |               
            
                69.00
             |                           
            
                69.50
             | 
            
                69.50
             |                     
            
                4.35
             |                                 
            
                48,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2006
             | 
            
                -3.00 / -4.23%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                68.00
             |                           
            
                68.00
             | 
            
                68.00
             |                     
            
                4.26
             |                                 
            
                51,760
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2006
             | 
            
                +1.00 / +1.43%
             |             
            
                70.00
             |           
            
                71.00
             |               
            
                70.00
             |                           
            
                71.00
             | 
            
                71.00
             |                     
            
                4.45
             |                                 
            
                24,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2006
             | 
            
                +3.00 / +4.48%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                4.39
             |                                 
            
                45,490
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2006
             | 
            
                +3.00 / +4.69%
             |             
            
                67.00
             |           
            
                67.00
             |               
            
                67.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                4.20
             |                                 
            
                24,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2006
             | 
            
                +1.00 / +1.59%
             |             
            
                64.00
             |           
            
                64.00
             |               
            
                64.00
             |                           
            
                64.00
             | 
            
                64.00
             |                     
            
                4.01
             |                                 
            
                30,980
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2006
             | 
            
                0.00 / 0.00%
             |             
            
                63.00
             |           
            
                64.00
             |               
            
                63.00
             |                           
            
                63.00
             | 
            
                63.00
             |                     
            
                3.95
             |                                 
            
                34,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2006
             | 
            
                +1.50 / +2.44%
             |             
            
                63.00
             |           
            
                64.00
             |               
            
                63.00
             |                           
            
                63.00
             | 
            
                63.00
             |                     
            
                3.95
             |                                 
            
                44,850
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2006
             | 
            
                +2.50 / +4.24%
             |             
            
                60.00
             |           
            
                61.50
             |               
            
                60.00
             |                           
            
                61.50
             | 
            
                61.50
             |                     
            
                3.85
             |                                 
            
                38,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2006
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                3.70
             |                                 
            
                44,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2006
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                3.70
             |                                 
            
                6,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2006
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                3.70
             |                                 
            
                17,890
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2006
             | 
            
                +0.50 / +0.85%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                3.70
             |                                 
            
                28,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2006
             | 
            
                +2.50 / +4.46%
             |             
            
                58.00
             |           
            
                58.50
             |               
            
                58.00
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                3.67
             |                                 
            
                29,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2006
             | 
            
                -2.50 / -4.27%
             |             
            
                58.50
             |           
            
                61.00
             |               
            
                56.00
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                3.51
             |                                 
            
                55,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2006
             | 
            
                +2.50 / +4.46%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                3.67
             |                                 
            
                12,050
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2006
             | 
            
                +2.50 / +4.67%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                56.00
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                3.51
             |                                 
            
                35,990
             |  
            
                 
             |                                                              
             
    
         
    
    
 |