| 
                 
                    Closing price on 4/6/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    35.50 | 
                 
                
                    | High | 
                    36.00 | 
                 
                
                    | Low | 
                    35.50 | 
                     
                
                    | Volume | 
                    2,510 | 
                                 
                
                    | Split-adjusted Price | 
                    4.81 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VHC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/6/2012
             | 
            
                0.00 / 0.00%
             |             
            
                35.50
             |           
            
                36.00
             |               
            
                35.50
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                4.81
             |                                 
            
                2,510
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2012
             | 
            
                0.00 / 0.00%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                36.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                4.81
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2012
             | 
            
                -0.50 / -1.37%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                36.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                4.81
             |                                 
            
                1,190
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2012
             | 
            
                -0.50 / -1.35%
             |             
            
                37.00
             |           
            
                37.00
             |               
            
                36.50
             |                           
            
                36.50
             | 
            
                36.50
             |                     
            
                4.87
             |                                 
            
                550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2012
             | 
            
                -0.20 / -0.54%
             |             
            
                37.00
             |           
            
                37.00
             |               
            
                37.00
             |                           
            
                37.00
             | 
            
                37.00
             |                     
            
                4.94
             |                                 
            
                30,080
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                36.00
             |           
            
                37.20
             |               
            
                35.50
             |                           
            
                37.20
             | 
            
                37.20
             |                     
            
                4.97
             |                                 
            
                15,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                37.20
             |           
            
                37.20
             |               
            
                37.20
             |                           
            
                37.20
             | 
            
                37.20
             |                     
            
                4.97
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2012
             | 
            
                0.00 / 0.00%
             |             
            
                37.20
             |           
            
                37.20
             |               
            
                37.20
             |                           
            
                37.20
             | 
            
                37.20
             |                     
            
                4.97
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2012
             | 
            
                -0.70 / -1.85%
             |             
            
                37.20
             |           
            
                37.20
             |               
            
                37.20
             |                           
            
                37.20
             | 
            
                37.20
             |                     
            
                4.97
             |                                 
            
                270
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2012
             | 
            
                -1.60 / -4.05%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                37.80
             |                           
            
                37.90
             | 
            
                37.90
             |                     
            
                5.06
             |                                 
            
                3,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2012
             | 
            
                +1.50 / +3.95%
             |             
            
                39.50
             |           
            
                39.50
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                5.27
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                37.00
             |           
            
                38.00
             |               
            
                37.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                5.07
             |                                 
            
                301,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                5.07
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                0.00 / 0.00%
             |             
            
                36.10
             |           
            
                38.00
             |               
            
                36.10
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                5.07
             |                                 
            
                11,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                36.50
             |           
            
                38.00
             |               
            
                36.50
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                5.07
             |                                 
            
                4,010
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2012
             | 
            
                +1.50 / +4.11%
             |             
            
                36.50
             |           
            
                38.00
             |               
            
                35.60
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                5.07
             |                                 
            
                10,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2012
             | 
            
                +0.50 / +1.39%
             |             
            
                36.00
             |           
            
                36.50
             |               
            
                36.00
             |                           
            
                36.50
             | 
            
                36.50
             |                     
            
                4.87
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2012
             | 
            
                +1.00 / +2.86%
             |             
            
                35.00
             |           
            
                36.00
             |               
            
                35.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                4.81
             |                                 
            
                15,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2012
             | 
            
                +1.00 / +2.94%
             |             
            
                34.90
             |           
            
                35.00
             |               
            
                34.00
             |                           
            
                35.00
             | 
            
                35.00
             |                     
            
                4.67
             |                                 
            
                20,610
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2012
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                33.50
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                4.54
             |                                 
            
                11,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2012
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                4.54
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2012
             | 
            
                +1.50 / +4.62%
             |             
            
                33.00
             |           
            
                34.10
             |               
            
                33.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                4.54
             |                                 
            
                68,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2012
             | 
            
                -1.50 / -4.41%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                32.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                4.34
             |                                 
            
                53,080
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2012
             | 
            
                +1.00 / +3.03%
             |             
            
                31.40
             |           
            
                34.00
             |               
            
                31.40
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                4.54
             |                                 
            
                23,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2012
             | 
            
                0.00 / 0.00%
             |             
            
                31.60
             |           
            
                33.00
             |               
            
                31.60
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                810
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                1,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                31.50
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                1,830
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                2,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                1,830
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                4.41
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |