| 
                 
                    Closing price on 1/19/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.20 | 
                 
                
                    | High | 
                    18.00 | 
                 
                
                    | Low | 
                    17.00 | 
                     
                
                    | Volume | 
                    5,600 | 
                                 
                
                    | Split-adjusted Price | 
                    17.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
V15 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/19/2011
             | 
            
                -0.20 / -1.16%
             |             
            
                17.20
             |           
            
                18.00
             |               
            
                17.00
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                17.10
             |                                 
            
                5,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2011
             | 
            
                -0.50 / -2.81%
             |             
            
                18.20
             |           
            
                18.30
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                17.30
             |                                 
            
                13,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2011
             | 
            
                +0.20 / +1.14%
             |             
            
                18.10
             |           
            
                18.30
             |               
            
                17.80
             |                           
            
                17.80
             | 
            
                17.80
             |                     
            
                17.80
             |                                 
            
                14,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                17.10
             |           
            
                17.60
             |               
            
                17.10
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                17.60
             |                                 
            
                9,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2011
             | 
            
                +0.70 / +4.14%
             |             
            
                17.50
             |           
            
                17.90
             |               
            
                16.90
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                17.60
             |                                 
            
                24,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2011
             | 
            
                +0.50 / +3.05%
             |             
            
                17.00
             |           
            
                17.10
             |               
            
                16.70
             |                           
            
                16.90
             | 
            
                16.90
             |                     
            
                16.90
             |                                 
            
                17,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2011
             | 
            
                -1.10 / -6.29%
             |             
            
                16.80
             |           
            
                17.00
             |               
            
                16.40
             |                           
            
                16.40
             | 
            
                16.40
             |                     
            
                16.40
             |                                 
            
                38,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2011
             | 
            
                -0.50 / -2.78%
             |             
            
                17.40
             |           
            
                17.90
             |               
            
                17.30
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                17.50
             |                                 
            
                29,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2011
             | 
            
                -0.50 / -2.70%
             |             
            
                18.30
             |           
            
                18.50
             |               
            
                18.00
             |                           
            
                18.00
             | 
            
                18.50
             |                     
            
                18.00
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2011
             | 
            
                +0.30 / +1.65%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                18.50
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2011
             | 
            
                -0.50 / -2.67%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                18.10
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                18.20
             |                                 
            
                6,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2011
             | 
            
                -0.20 / -1.06%
             |             
            
                18.70
             |           
            
                19.00
             |               
            
                18.70
             |                           
            
                18.70
             | 
            
                18.70
             |                     
            
                18.70
             |                                 
            
                21,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/31/2010
             | 
            
                0.00 / 0.00%
             |             
            
                18.90
             |           
            
                18.90
             |               
            
                18.50
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                18.90
             |                                 
            
                28,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2010
             | 
            
                -0.10 / -0.53%
             |             
            
                19.10
             |           
            
                19.30
             |               
            
                18.50
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                18.90
             |                                 
            
                10,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2010
             | 
            
                -0.10 / -0.52%
             |             
            
                19.70
             |           
            
                19.80
             |               
            
                18.90
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                19.00
             |                                 
            
                14,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2010
             | 
            
                +0.90 / +4.95%
             |             
            
                18.00
             |           
            
                19.10
             |               
            
                18.00
             |                           
            
                19.10
             | 
            
                19.10
             |                     
            
                19.10
             |                                 
            
                66,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2010
             | 
            
                +0.50 / +2.82%
             |             
            
                18.40
             |           
            
                18.50
             |               
            
                17.80
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                18.20
             |                                 
            
                22,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2010
             | 
            
                +0.20 / +1.14%
             |             
            
                17.80
             |           
            
                18.40
             |               
            
                17.40
             |                           
            
                17.70
             | 
            
                17.50
             |                     
            
                17.70
             |                                 
            
                12,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2010
             | 
            
                -0.80 / -4.37%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                17.30
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                17.50
             |                                 
            
                28,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2010
             | 
            
                -0.60 / -3.17%
             |             
            
                18.50
             |           
            
                18.70
             |               
            
                18.10
             |                           
            
                18.30
             | 
            
                18.30
             |                     
            
                18.30
             |                                 
            
                30,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2010
             | 
            
                +0.60 / +3.28%
             |             
            
                18.40
             |           
            
                19.00
             |               
            
                18.00
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                18.90
             |                                 
            
                25,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2010
             | 
            
                -1.70 / -8.50%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                18.30
             |                           
            
                18.30
             | 
            
                18.30
             |                     
            
                18.30
             |                                 
            
                96,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2010
             | 
            
                +1.40 / +7.53%
             |             
            
                19.30
             |           
            
                20.00
             |               
            
                18.60
             |                           
            
                20.00
             | 
            
                18.60
             |                     
            
                20.00
             |                                 
            
                89,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2010
             | 
            
                -1.00 / -5.10%
             |             
            
                19.60
             |           
            
                19.60
             |               
            
                18.60
             |                           
            
                18.60
             | 
            
                18.60
             |                     
            
                18.60
             |                                 
            
                77,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2010
             | 
            
                -1.10 / -5.31%
             |             
            
                20.80
             |           
            
                20.80
             |               
            
                19.50
             |                           
            
                19.60
             | 
            
                19.60
             |                     
            
                19.60
             |                                 
            
                71,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2010
             | 
            
                -1.50 / -6.76%
             |             
            
                21.20
             |           
            
                22.20
             |               
            
                20.70
             |                           
            
                20.70
             | 
            
                20.70
             |                     
            
                20.70
             |                                 
            
                140,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2010
             | 
            
                +1.40 / +6.73%
             |             
            
                22.20
             |           
            
                22.20
             |               
            
                22.10
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                22.20
             |                                 
            
                188,700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2010
             | 
            
                +0.70 / +3.48%
             |             
            
                20.70
             |           
            
                20.80
             |               
            
                20.50
             |                           
            
                20.80
             | 
            
                20.70
             |                     
            
                20.80
             |                                 
            
                57,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2010
             | 
            
                +0.20 / +1.01%
             |             
            
                18.70
             |           
            
                21.20
             |               
            
                18.70
             |                           
            
                20.10
             | 
            
                20.10
             |                     
            
                20.10
             |                                 
            
                98,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2010
             | 
            
                -1.20 / -5.69%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                19.90
             |                           
            
                19.90
             | 
            
                19.90
             |                     
            
                19.90
             |                                 
            
                118,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |