| 
                 
                    Closing price on 3/30/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.50 | 
                 
                
                    | High | 
                    12.50 | 
                 
                
                    | Low | 
                    11.90 | 
                     
                
                    | Volume | 
                    18,280 | 
                                 
                
                    | Split-adjusted Price | 
                    3.77 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DHA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/30/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                11.90
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                3.77
             |                                 
            
                18,280
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                -0.40 / -3.13%
             |             
            
                12.90
             |           
            
                13.00
             |               
            
                12.20
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                3.77
             |                                 
            
                48,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2012
             | 
            
                +0.30 / +2.40%
             |             
            
                12.60
             |           
            
                12.80
             |               
            
                12.30
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                3.89
             |                                 
            
                30,410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2012
             | 
            
                -0.60 / -4.58%
             |             
            
                12.60
             |           
            
                13.10
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                3.80
             |                                 
            
                89,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2012
             | 
            
                +0.30 / +2.34%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.80
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                3.98
             |                                 
            
                191,390
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2012
             | 
            
                +0.60 / +4.92%
             |             
            
                12.50
             |           
            
                12.80
             |               
            
                12.50
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                3.89
             |                                 
            
                160,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2012
             | 
            
                +0.50 / +4.27%
             |             
            
                11.50
             |           
            
                12.20
             |               
            
                11.50
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                3.71
             |                                 
            
                230,170
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2012
             | 
            
                +0.50 / +4.46%
             |             
            
                11.20
             |           
            
                11.70
             |               
            
                11.20
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                3.55
             |                                 
            
                96,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.40
             |                                 
            
                24,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                -0.20 / -1.75%
             |             
            
                10.90
             |           
            
                11.50
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.40
             |                                 
            
                11,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                11.10
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.46
             |                                 
            
                13,080
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2012
             | 
            
                +0.50 / +4.59%
             |             
            
                10.90
             |           
            
                11.40
             |               
            
                10.80
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.46
             |                                 
            
                45,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2012
             | 
            
                -0.40 / -3.54%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.31
             |                                 
            
                27,580
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2012
             | 
            
                +0.20 / +1.80%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.43
             |                                 
            
                28,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2012
             | 
            
                -0.30 / -2.63%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                3.37
             |                                 
            
                20,550
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2012
             | 
            
                +0.20 / +1.79%
             |             
            
                11.20
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.46
             |                                 
            
                37,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2012
             | 
            
                -0.50 / -4.27%
             |             
            
                11.40
             |           
            
                11.60
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.40
             |                                 
            
                69,330
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2012
             | 
            
                -0.20 / -1.68%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                3.55
             |                                 
            
                75,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                11.70
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                3.62
             |                                 
            
                210,680
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2012
             | 
            
                +0.50 / +4.39%
             |             
            
                11.70
             |           
            
                11.90
             |               
            
                11.70
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                3.62
             |                                 
            
                101,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2012
             | 
            
                +0.20 / +1.79%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.46
             |                                 
            
                74,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2012
             | 
            
                +0.40 / +3.70%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                10.80
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.40
             |                                 
            
                32,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2012
             | 
            
                -0.30 / -2.70%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                10.60
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.28
             |                                 
            
                161,550
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2012
             | 
            
                -0.50 / -4.31%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                3.37
             |                                 
            
                186,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2012
             | 
            
                -0.10 / -0.85%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.20
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.52
             |                                 
            
                165,620
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.50
             |           
            
                11.80
             |               
            
                11.40
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                3.55
             |                                 
            
                123,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2012
             | 
            
                +0.30 / +2.63%
             |             
            
                11.30
             |           
            
                11.90
             |               
            
                11.20
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                3.55
             |                                 
            
                38,990
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2012
             | 
            
                +0.50 / +4.59%
             |             
            
                10.90
             |           
            
                11.40
             |               
            
                10.90
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.46
             |                                 
            
                51,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2012
             | 
            
                +0.10 / +0.93%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.31
             |                                 
            
                40,340
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2012
             | 
            
                +0.40 / +3.85%
             |             
            
                10.50
             |           
            
                10.80
             |               
            
                10.50
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.28
             |                                 
            
                48,770
             |  
            
                 
             |                                                              
             
    
         
    
    
 |