| 
                 
                    Closing price on 5/7/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    51.00 | 
                 
                
                    | High | 
                    52.50 | 
                 
                
                    | Low | 
                    50.50 | 
                     
                
                    | Volume | 
                    180,600 | 
                                 
                
                    | Split-adjusted Price | 
                    7.97 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/7/2010
             | 
            
                -1.50 / -2.83%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                50.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                7.97
             |                                 
            
                180,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2010
             | 
            
                -0.50 / -0.93%
             |             
            
                53.00
             |           
            
                54.00
             |               
            
                53.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                8.20
             |                                 
            
                134,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2010
             | 
            
                0.00 / 0.00%
             |             
            
                52.50
             |           
            
                54.00
             |               
            
                52.00
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                8.28
             |                                 
            
                231,430
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2010
             | 
            
                +1.00 / +1.90%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                52.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                8.28
             |                                 
            
                69,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2010
             | 
            
                +2.50 / +5.00%
             |             
            
                50.00
             |           
            
                52.50
             |               
            
                50.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                8.13
             |                                 
            
                170,980
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2010
             | 
            
                -2.00 / -3.85%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                49.40
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                7.74
             |                                 
            
                65,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2010
             | 
            
                0.00 / 0.00%
             |             
            
                50.50
             |           
            
                52.00
             |               
            
                50.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                8.05
             |                                 
            
                71,760
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2010
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                8.05
             |                                 
            
                150,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2010
             | 
            
                +0.50 / +0.97%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                52.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                8.05
             |                                 
            
                111,350
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2010
             | 
            
                +2.00 / +4.04%
             |             
            
                49.50
             |           
            
                51.50
             |               
            
                49.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                7.97
             |                                 
            
                233,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2010
             | 
            
                -0.50 / -1.00%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.20
             |                           
            
                49.50
             | 
            
                49.50
             |                     
            
                7.66
             |                                 
            
                127,960
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2010
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.00
             |               
            
                49.60
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                7.74
             |                                 
            
                123,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2010
             | 
            
                +0.40 / +0.81%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.50
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                7.74
             |                                 
            
                24,780
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2010
             | 
            
                +1.20 / +2.48%
             |             
            
                49.70
             |           
            
                49.70
             |               
            
                49.00
             |                           
            
                49.60
             | 
            
                49.60
             |                     
            
                7.68
             |                                 
            
                64,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2010
             | 
            
                -1.20 / -2.42%
             |             
            
                48.50
             |           
            
                49.00
             |               
            
                48.40
             |                           
            
                48.40
             | 
            
                48.40
             |                     
            
                7.49
             |                                 
            
                56,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2010
             | 
            
                -0.20 / -0.40%
             |             
            
                49.10
             |           
            
                49.90
             |               
            
                49.10
             |                           
            
                49.60
             | 
            
                49.60
             |                     
            
                7.68
             |                                 
            
                64,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2010
             | 
            
                -0.70 / -1.39%
             |             
            
                49.80
             |           
            
                49.80
             |               
            
                49.80
             |                           
            
                49.80
             | 
            
                49.80
             |                     
            
                7.71
             |                                 
            
                57,570
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2010
             | 
            
                0.00 / 0.00%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                50.50
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                7.82
             |                                 
            
                49,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2010
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                49.50
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                7.82
             |                                 
            
                34,230
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2010
             | 
            
                +1.50 / +3.06%
             |             
            
                49.20
             |           
            
                51.00
             |               
            
                49.20
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                7.82
             |                                 
            
                175,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2010
             | 
            
                +1.20 / +2.51%
             |             
            
                47.80
             |           
            
                49.90
             |               
            
                47.80
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                7.58
             |                                 
            
                132,560
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2010
             | 
            
                -0.20 / -0.42%
             |             
            
                48.00
             |           
            
                48.40
             |               
            
                47.80
             |                           
            
                47.80
             | 
            
                47.80
             |                     
            
                7.40
             |                                 
            
                63,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2010
             | 
            
                0.00 / 0.00%
             |             
            
                48.40
             |           
            
                48.40
             |               
            
                47.80
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                7.43
             |                                 
            
                24,090
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2010
             | 
            
                +1.00 / +2.13%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                47.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                7.43
             |                                 
            
                37,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2010
             | 
            
                0.00 / 0.00%
             |             
            
                46.50
             |           
            
                48.80
             |               
            
                46.50
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                7.27
             |                                 
            
                40,320
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2010
             | 
            
                -1.60 / -3.29%
             |             
            
                48.60
             |           
            
                48.60
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                7.27
             |                                 
            
                61,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2010
             | 
            
                -0.40 / -0.82%
             |             
            
                48.40
             |           
            
                49.00
             |               
            
                48.40
             |                           
            
                48.60
             | 
            
                48.60
             |                     
            
                7.52
             |                                 
            
                76,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2010
             | 
            
                0.00 / 0.00%
             |             
            
                49.00
             |           
            
                49.10
             |               
            
                48.30
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                7.58
             |                                 
            
                39,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2010
             | 
            
                +0.20 / +0.41%
             |             
            
                48.60
             |           
            
                51.00
             |               
            
                46.90
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                7.58
             |                                 
            
                159,970
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2010
             | 
            
                +0.50 / +1.04%
             |             
            
                50.00
             |           
            
                50.00
             |               
            
                48.00
             |                           
            
                48.80
             | 
            
                48.80
             |                     
            
                7.55
             |                                 
            
                41,780
             |  
            
                 
             |                                                              
             
    
         
    
    
 |