| 
                 
                    Closing price on 2/23/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    32.80 | 
                 
                
                    | High | 
                    34.90 | 
                 
                
                    | Low | 
                    32.60 | 
                     
                
                    | Volume | 
                    70,500 | 
                                 
                
                    | Split-adjusted Price | 
                    3.23 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
HDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/23/2011
             | 
            
                -1.70 / -4.96%
             |             
            
                32.80
             |           
            
                34.90
             |               
            
                32.60
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                3.23
             |                                 
            
                70,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2011
             | 
            
                -1.80 / -4.99%
             |             
            
                34.30
             |           
            
                34.80
             |               
            
                34.30
             |                           
            
                34.30
             | 
            
                34.30
             |                     
            
                3.40
             |                                 
            
                52,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2011
             | 
            
                -1.90 / -5.00%
             |             
            
                36.20
             |           
            
                36.20
             |               
            
                36.10
             |                           
            
                36.10
             | 
            
                36.10
             |                     
            
                3.58
             |                                 
            
                70,330
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2011
             | 
            
                -0.30 / -0.78%
             |             
            
                37.10
             |           
            
                38.90
             |               
            
                37.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                3.76
             |                                 
            
                8,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2011
             | 
            
                -0.70 / -1.79%
             |             
            
                38.50
             |           
            
                38.50
             |               
            
                37.10
             |                           
            
                38.30
             | 
            
                38.30
             |                     
            
                3.79
             |                                 
            
                131,530
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2011
             | 
            
                0.00 / 0.00%
             |             
            
                39.00
             |           
            
                39.20
             |               
            
                38.50
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                3.86
             |                                 
            
                21,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2011
             | 
            
                -0.10 / -0.26%
             |             
            
                39.50
             |           
            
                39.60
             |               
            
                39.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                3.86
             |                                 
            
                4,850
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2011
             | 
            
                -0.30 / -0.76%
             |             
            
                39.10
             |           
            
                39.10
             |               
            
                39.10
             |                           
            
                39.10
             | 
            
                39.10
             |                     
            
                3.87
             |                                 
            
                520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2011
             | 
            
                -0.10 / -0.25%
             |             
            
                39.40
             |           
            
                39.40
             |               
            
                39.40
             |                           
            
                39.40
             | 
            
                39.40
             |                     
            
                3.90
             |                                 
            
                11,620
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2011
             | 
            
                0.00 / 0.00%
             |             
            
                39.50
             |           
            
                39.70
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                3.91
             |                                 
            
                6,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2011
             | 
            
                0.00 / 0.00%
             |             
            
                39.80
             |           
            
                39.80
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                3.91
             |                                 
            
                1,010
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2011
             | 
            
                +0.10 / +0.25%
             |             
            
                39.90
             |           
            
                39.90
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                3.91
             |                                 
            
                7,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2011
             | 
            
                +0.20 / +0.51%
             |             
            
                39.40
             |           
            
                39.40
             |               
            
                39.20
             |                           
            
                39.40
             | 
            
                39.40
             |                     
            
                3.90
             |                                 
            
                28,240
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2011
             | 
            
                -0.30 / -0.76%
             |             
            
                39.50
             |           
            
                39.50
             |               
            
                39.20
             |                           
            
                39.20
             | 
            
                39.20
             |                     
            
                3.88
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2011
             | 
            
                -0.50 / -1.25%
             |             
            
                39.80
             |           
            
                39.90
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                3.91
             |                                 
            
                33,310
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2011
             | 
            
                -1.00 / -2.44%
             |             
            
                39.10
             |           
            
                40.50
             |               
            
                39.10
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                3.96
             |                                 
            
                49,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2011
             | 
            
                -1.40 / -3.30%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                41.00
             |                           
            
                41.00
             | 
            
                41.00
             |                     
            
                4.06
             |                                 
            
                17,560
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                42.40
             |           
            
                42.40
             |               
            
                42.00
             |                           
            
                42.40
             | 
            
                42.40
             |                     
            
                4.20
             |                                 
            
                17,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2011
             | 
            
                -0.10 / -0.24%
             |             
            
                42.50
             |           
            
                42.50
             |               
            
                42.10
             |                           
            
                42.40
             | 
            
                42.40
             |                     
            
                4.20
             |                                 
            
                16,010
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2011
             | 
            
                +0.20 / +0.47%
             |             
            
                42.20
             |           
            
                42.50
             |               
            
                42.20
             |                           
            
                42.50
             | 
            
                42.50
             |                     
            
                4.21
             |                                 
            
                4,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2011
             | 
            
                +0.20 / +0.48%
             |             
            
                42.00
             |           
            
                42.30
             |               
            
                41.70
             |                           
            
                42.30
             | 
            
                42.30
             |                     
            
                4.19
             |                                 
            
                3,940
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2011
             | 
            
                +0.10 / +0.24%
             |             
            
                41.90
             |           
            
                42.60
             |               
            
                41.90
             |                           
            
                42.10
             | 
            
                42.10
             |                     
            
                4.17
             |                                 
            
                28,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                41.80
             |           
            
                42.50
             |               
            
                41.50
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                4.16
             |                                 
            
                20,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2011
             | 
            
                -0.50 / -1.18%
             |             
            
                41.00
             |           
            
                42.50
             |               
            
                41.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                4.16
             |                                 
            
                23,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2011
             | 
            
                0.00 / 0.00%
             |             
            
                43.40
             |           
            
                43.40
             |               
            
                42.50
             |                           
            
                42.50
             | 
            
                42.50
             |                     
            
                4.21
             |                                 
            
                2,320
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2011
             | 
            
                0.00 / 0.00%
             |             
            
                42.30
             |           
            
                42.50
             |               
            
                42.00
             |                           
            
                42.50
             | 
            
                42.50
             |                     
            
                4.21
             |                                 
            
                11,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2011
             | 
            
                -0.70 / -1.62%
             |             
            
                42.50
             |           
            
                42.50
             |               
            
                42.50
             |                           
            
                42.50
             | 
            
                42.50
             |                     
            
                4.21
             |                                 
            
                4,910
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2011
             | 
            
                -0.30 / -0.69%
             |             
            
                42.00
             |           
            
                43.20
             |               
            
                42.00
             |                           
            
                43.20
             | 
            
                43.20
             |                     
            
                4.28
             |                                 
            
                2,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2011
             | 
            
                +0.50 / +1.16%
             |             
            
                42.50
             |           
            
                43.50
             |               
            
                42.50
             |                           
            
                43.50
             | 
            
                43.50
             |                     
            
                4.31
             |                                 
            
                4,710
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2011
             | 
            
                -0.40 / -0.92%
             |             
            
                43.40
             |           
            
                43.40
             |               
            
                43.00
             |                           
            
                43.00
             | 
            
                43.00
             |                     
            
                4.26
             |                                 
            
                12,060
             |  
            
                 
             |                                                              
             
    
         
    
    
 |