| 
                 
                    Closing price on 7/12/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    57.90 | 
                 
                
                    | High | 
                    57.90 | 
                 
                
                    | Low | 
                    57.90 | 
                     
                
                    | Volume | 
                    12,700 | 
                                 
                
                    | Split-adjusted Price | 
                    44.74 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
V21 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/12/2010
             | 
            
                +2.20 / +3.95%
             |             
            
                57.90
             |           
            
                57.90
             |               
            
                57.90
             |                           
            
                57.90
             | 
            
                57.90
             |                     
            
                44.74
             |                                 
            
                12,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2010
             | 
            
                -4.10 / -6.86%
             |             
            
                55.70
             |           
            
                55.70
             |               
            
                55.70
             |                           
            
                55.70
             | 
            
                55.70
             |                     
            
                43.04
             |                                 
            
                18,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2010
             | 
            
                +0.90 / +1.53%
             |             
            
                59.80
             |           
            
                59.80
             |               
            
                59.80
             |                           
            
                59.80
             | 
            
                59.80
             |                     
            
                46.21
             |                                 
            
                13,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2010
             | 
            
                +0.40 / +0.68%
             |             
            
                58.90
             |           
            
                58.90
             |               
            
                58.90
             |                           
            
                58.90
             | 
            
                58.90
             |                     
            
                45.51
             |                                 
            
                9,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2010
             | 
            
                +1.50 / +2.63%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                45.20
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2010
             | 
            
                -0.50 / -0.87%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                57.00
             |                           
            
                57.00
             | 
            
                57.00
             |                     
            
                44.05
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2010
             | 
            
                -2.90 / -4.80%
             |             
            
                60.90
             |           
            
                60.90
             |               
            
                57.50
             |                           
            
                57.50
             | 
            
                57.50
             |                     
            
                44.43
             |                                 
            
                6,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2010
             | 
            
                -1.50 / -2.42%
             |             
            
                56.70
             |           
            
                60.50
             |               
            
                56.70
             |                           
            
                60.40
             | 
            
                60.40
             |                     
            
                46.67
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2010
             | 
            
                -0.10 / -0.16%
             |             
            
                65.00
             |           
            
                66.30
             |               
            
                57.80
             |                           
            
                61.90
             | 
            
                61.90
             |                     
            
                47.83
             |                                 
            
                14,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2010
             | 
            
                0.00 / 0.00%
             |             
            
                66.30
             |           
            
                66.30
             |               
            
                58.00
             |                           
            
                62.00
             | 
            
                62.00
             |                     
            
                47.91
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2010
             | 
            
                +3.10 / +5.26%
             |             
            
                62.00
             |           
            
                62.00
             |               
            
                62.00
             |                           
            
                62.00
             | 
            
                62.00
             |                     
            
                47.91
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2010
             | 
            
                -3.20 / -5.15%
             |             
            
                59.00
             |           
            
                63.00
             |               
            
                57.20
             |                           
            
                58.90
             | 
            
                58.90
             |                     
            
                45.51
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2010
             | 
            
                -0.40 / -0.64%
             |             
            
                62.80
             |           
            
                62.80
             |               
            
                58.30
             |                           
            
                62.10
             | 
            
                62.10
             |                     
            
                47.99
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2010
             | 
            
                -3.00 / -4.58%
             |             
            
                63.90
             |           
            
                63.90
             |               
            
                60.00
             |                           
            
                62.50
             | 
            
                62.50
             |                     
            
                48.30
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2010
             | 
            
                +1.50 / +2.34%
             |             
            
                67.40
             |           
            
                67.40
             |               
            
                60.70
             |                           
            
                65.50
             | 
            
                65.50
             |                     
            
                50.61
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2010
             | 
            
                -3.00 / -4.48%
             |             
            
                67.90
             |           
            
                67.90
             |               
            
                64.00
             |                           
            
                64.00
             | 
            
                64.00
             |                     
            
                49.45
             |                                 
            
                15,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2010
             | 
            
                +2.30 / +3.55%
             |             
            
                66.90
             |           
            
                68.00
             |               
            
                63.50
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                51.77
             |                                 
            
                30,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2010
             | 
            
                +3.80 / +6.24%
             |             
            
                64.70
             |           
            
                64.70
             |               
            
                62.00
             |                           
            
                64.70
             | 
            
                64.70
             |                     
            
                50.00
             |                                 
            
                48,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2010
             | 
            
                +2.90 / +5.00%
             |             
            
                58.00
             |           
            
                60.90
             |               
            
                58.00
             |                           
            
                60.90
             | 
            
                60.90
             |                     
            
                47.06
             |                                 
            
                25,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2010
             | 
            
                0.00 / 0.00%
             |             
            
                58.20
             |           
            
                59.60
             |               
            
                55.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                44.82
             |                                 
            
                21,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2010
             | 
            
                +0.60 / +1.05%
             |             
            
                59.90
             |           
            
                59.90
             |               
            
                57.40
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                44.82
             |                                 
            
                5,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2010
             | 
            
                -0.50 / -0.86%
             |             
            
                57.50
             |           
            
                59.00
             |               
            
                57.30
             |                           
            
                57.40
             | 
            
                57.40
             |                     
            
                44.35
             |                                 
            
                38,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2010
             | 
            
                +3.40 / +6.24%
             |             
            
                58.80
             |           
            
                58.80
             |               
            
                56.00
             |                           
            
                57.90
             | 
            
                57.90
             |                     
            
                44.74
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2010
             | 
            
                -0.40 / -0.73%
             |             
            
                53.10
             |           
            
                57.00
             |               
            
                53.10
             |                           
            
                54.50
             | 
            
                54.50
             |                     
            
                42.11
             |                                 
            
                36,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2010
             | 
            
                -0.50 / -0.90%
             |             
            
                54.50
             |           
            
                54.90
             |               
            
                52.50
             |                           
            
                54.90
             | 
            
                54.90
             |                     
            
                42.42
             |                                 
            
                7,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2010
             | 
            
                -1.40 / -2.46%
             |             
            
                58.90
             |           
            
                59.00
             |               
            
                52.50
             |                           
            
                55.40
             | 
            
                55.40
             |                     
            
                42.81
             |                                 
            
                16,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2010
             | 
            
                +2.80 / +5.19%
             |             
            
                52.00
             |           
            
                56.80
             |               
            
                52.00
             |                           
            
                56.80
             | 
            
                56.80
             |                     
            
                43.89
             |                                 
            
                17,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2010
             | 
            
                +2.60 / +5.06%
             |             
            
                52.50
             |           
            
                54.90
             |               
            
                52.00
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                41.73
             |                                 
            
                37,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2010
             | 
            
                -0.80 / -1.53%
             |             
            
                51.20
             |           
            
                53.90
             |               
            
                50.00
             |                           
            
                51.40
             | 
            
                51.40
             |                     
            
                39.72
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2010
             | 
            
                -0.50 / -0.95%
             |             
            
                49.90
             |           
            
                52.20
             |               
            
                49.90
             |                           
            
                52.20
             | 
            
                52.20
             |                     
            
                40.34
             |                                 
            
                11,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |