| 
                 
                    Closing price on 3/23/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    49.50 | 
                 
                
                    | High | 
                    49.50 | 
                 
                
                    | Low | 
                    48.00 | 
                     
                
                    | Volume | 
                    119,210 | 
                                 
                
                    | Split-adjusted Price | 
                    7.48 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/23/2010
             | 
            
                -1.10 / -2.23%
             |             
            
                49.50
             |           
            
                49.50
             |               
            
                48.00
             |                           
            
                48.30
             | 
            
                48.30
             |                     
            
                7.48
             |                                 
            
                119,210
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2010
             | 
            
                -2.60 / -5.00%
             |             
            
                51.00
             |           
            
                52.00
             |               
            
                49.40
             |                           
            
                49.40
             | 
            
                49.40
             |                     
            
                7.65
             |                                 
            
                74,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2010
             | 
            
                +2.00 / +4.00%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                50.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                8.05
             |                                 
            
                392,960
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2010
             | 
            
                +2.00 / +4.17%
             |             
            
                48.00
             |           
            
                50.00
             |               
            
                48.00
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                7.74
             |                                 
            
                136,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2010
             | 
            
                +0.10 / +0.21%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                47.70
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                7.43
             |                                 
            
                74,330
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2010
             | 
            
                -0.80 / -1.64%
             |             
            
                47.00
             |           
            
                48.60
             |               
            
                47.00
             |                           
            
                47.90
             | 
            
                47.90
             |                     
            
                7.41
             |                                 
            
                112,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2010
             | 
            
                -0.10 / -0.20%
             |             
            
                48.80
             |           
            
                49.40
             |               
            
                48.70
             |                           
            
                48.70
             | 
            
                48.70
             |                     
            
                7.54
             |                                 
            
                156,750
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2010
             | 
            
                -0.80 / -1.61%
             |             
            
                49.60
             |           
            
                49.60
             |               
            
                48.00
             |                           
            
                48.80
             | 
            
                48.80
             |                     
            
                7.55
             |                                 
            
                104,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2010
             | 
            
                +1.20 / +2.48%
             |             
            
                49.00
             |           
            
                50.00
             |               
            
                48.50
             |                           
            
                49.60
             | 
            
                49.60
             |                     
            
                7.68
             |                                 
            
                111,330
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2010
             | 
            
                +2.10 / +4.54%
             |             
            
                46.30
             |           
            
                48.40
             |               
            
                46.30
             |                           
            
                48.40
             | 
            
                48.40
             |                     
            
                7.49
             |                                 
            
                142,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2010
             | 
            
                +1.00 / +2.21%
             |             
            
                45.60
             |           
            
                47.20
             |               
            
                45.60
             |                           
            
                46.30
             | 
            
                46.30
             |                     
            
                7.17
             |                                 
            
                77,520
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2010
             | 
            
                +2.10 / +4.86%
             |             
            
                44.00
             |           
            
                45.30
             |               
            
                44.00
             |                           
            
                45.30
             | 
            
                45.30
             |                     
            
                7.01
             |                                 
            
                113,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2010
             | 
            
                -1.30 / -2.92%
             |             
            
                43.00
             |           
            
                44.50
             |               
            
                43.00
             |                           
            
                43.20
             | 
            
                43.20
             |                     
            
                6.69
             |                                 
            
                24,420
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2010
             | 
            
                +0.50 / +1.14%
             |             
            
                44.50
             |           
            
                45.00
             |               
            
                43.00
             |                           
            
                44.50
             | 
            
                44.50
             |                     
            
                6.89
             |                                 
            
                27,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2010
             | 
            
                +1.70 / +4.02%
             |             
            
                42.30
             |           
            
                44.00
             |               
            
                42.30
             |                           
            
                44.00
             | 
            
                44.00
             |                     
            
                6.81
             |                                 
            
                82,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2010
             | 
            
                +0.90 / +2.17%
             |             
            
                41.90
             |           
            
                42.80
             |               
            
                41.80
             |                           
            
                42.30
             | 
            
                42.30
             |                     
            
                6.55
             |                                 
            
                63,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2010
             | 
            
                0.00 / 0.00%
             |             
            
                41.40
             |           
            
                41.40
             |               
            
                41.30
             |                           
            
                41.40
             | 
            
                41.40
             |                     
            
                6.41
             |                                 
            
                16,040
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2010
             | 
            
                +0.90 / +2.22%
             |             
            
                41.00
             |           
            
                41.40
             |               
            
                40.50
             |                           
            
                41.40
             | 
            
                41.40
             |                     
            
                6.41
             |                                 
            
                10,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2010
             | 
            
                +0.30 / +0.75%
             |             
            
                41.00
             |           
            
                41.00
             |               
            
                40.50
             |                           
            
                40.50
             | 
            
                40.50
             |                     
            
                6.27
             |                                 
            
                21,180
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2010
             | 
            
                +0.20 / +0.50%
             |             
            
                40.00
             |           
            
                40.20
             |               
            
                40.00
             |                           
            
                40.20
             | 
            
                40.20
             |                     
            
                6.22
             |                                 
            
                20,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2010
             | 
            
                -1.10 / -2.68%
             |             
            
                40.00
             |           
            
                41.00
             |               
            
                40.00
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                6.19
             |                                 
            
                29,520
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2010
             | 
            
                +0.80 / +1.99%
             |             
            
                41.50
             |           
            
                41.50
             |               
            
                41.00
             |                           
            
                41.10
             | 
            
                41.10
             |                     
            
                6.36
             |                                 
            
                34,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2010
             | 
            
                +0.10 / +0.25%
             |             
            
                41.80
             |           
            
                41.80
             |               
            
                40.20
             |                           
            
                40.30
             | 
            
                40.30
             |                     
            
                6.24
             |                                 
            
                6,950
             |            
            
                 
             |                                       
         
    
        
            | 
                2/11/2010
             | 
            
                +1.30 / +3.34%
             |             
            
                40.20
             |           
            
                40.20
             |               
            
                40.20
             |                           
            
                40.20
             | 
            
                40.20
             |                     
            
                6.22
             |                                 
            
                16,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2010
             | 
            
                0.00 / 0.00%
             |             
            
                38.90
             |           
            
                39.50
             |               
            
                38.90
             |                           
            
                38.90
             | 
            
                38.90
             |                     
            
                6.02
             |                                 
            
                12,310
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2010
             | 
            
                -0.70 / -1.77%
             |             
            
                38.80
             |           
            
                39.30
             |               
            
                38.80
             |                           
            
                38.90
             | 
            
                38.90
             |                     
            
                6.02
             |                                 
            
                22,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2010
             | 
            
                -0.90 / -2.22%
             |             
            
                39.60
             |           
            
                40.70
             |               
            
                39.60
             |                           
            
                39.60
             | 
            
                39.60
             |                     
            
                6.13
             |                                 
            
                6,870
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2010
             | 
            
                -0.90 / -2.17%
             |             
            
                41.40
             |           
            
                41.40
             |               
            
                40.00
             |                           
            
                40.50
             | 
            
                40.50
             |                     
            
                6.27
             |                                 
            
                42,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2010
             | 
            
                -0.60 / -1.43%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                41.40
             |                           
            
                41.40
             | 
            
                41.40
             |                     
            
                6.41
             |                                 
            
                50,530
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2010
             | 
            
                +0.50 / +1.20%
             |             
            
                42.10
             |           
            
                42.10
             |               
            
                40.50
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                6.50
             |                                 
            
                45,040
             |  
            
                 
             |                                                              
             
    
         
    
    
 |