| 
                 
                    Closing price on 12/2/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    22.00 | 
                 
                
                    | High | 
                    22.40 | 
                 
                
                    | Low | 
                    20.20 | 
                     
                
                    | Volume | 
                    209,300 | 
                                 
                
                    | Split-adjusted Price | 
                    21.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
V15 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/2/2010
             | 
            
                +1.40 / +6.86%
             |             
            
                22.00
             |           
            
                22.40
             |               
            
                20.20
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                21.80
             |                                 
            
                209,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2010
             | 
            
                +0.10 / +0.49%
             |             
            
                21.70
             |           
            
                21.70
             |               
            
                20.20
             |                           
            
                20.40
             | 
            
                20.40
             |                     
            
                20.40
             |                                 
            
                427,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2010
             | 
            
                +1.10 / +5.73%
             |             
            
                20.30
             |           
            
                20.30
             |               
            
                20.30
             |                           
            
                20.30
             | 
            
                20.30
             |                     
            
                20.30
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2010
             | 
            
                +1.20 / +6.67%
             |             
            
                18.70
             |           
            
                19.20
             |               
            
                18.00
             |                           
            
                19.20
             | 
            
                19.20
             |                     
            
                19.20
             |                                 
            
                122,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2010
             | 
            
                +1.00 / +5.88%
             |             
            
                16.50
             |           
            
                18.00
             |               
            
                16.50
             |                           
            
                18.00
             | 
            
                17.00
             |                     
            
                18.00
             |                                 
            
                247,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2010
             | 
            
                +1.00 / +6.25%
             |             
            
                16.50
             |           
            
                17.00
             |               
            
                16.30
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                17.00
             |                                 
            
                226,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2010
             | 
            
                +0.20 / +1.27%
             |             
            
                16.00
             |           
            
                16.10
             |               
            
                15.10
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                16.00
             |                                 
            
                85,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2010
             | 
            
                -0.20 / -1.25%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                15.60
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                15.80
             |                                 
            
                53,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2010
             | 
            
                +0.50 / +3.23%
             |             
            
                15.10
             |           
            
                16.00
             |               
            
                15.10
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                16.00
             |                                 
            
                55,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2010
             | 
            
                -1.00 / -6.06%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                15.30
             |                           
            
                15.50
             | 
            
                16.50
             |                     
            
                15.50
             |                                 
            
                49,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2010
             | 
            
                +0.80 / +5.10%
             |             
            
                16.00
             |           
            
                16.60
             |               
            
                16.00
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                16.50
             |                                 
            
                81,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2010
             | 
            
                +0.50 / +3.29%
             |             
            
                15.70
             |           
            
                16.00
             |               
            
                14.80
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                15.70
             |                                 
            
                17,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2010
             | 
            
                -0.20 / -1.30%
             |             
            
                14.80
             |           
            
                15.40
             |               
            
                14.70
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                15.20
             |                                 
            
                50,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2010
             | 
            
                -1.40 / -8.33%
             |             
            
                17.10
             |           
            
                17.10
             |               
            
                15.20
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                15.40
             |                                 
            
                57,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2010
             | 
            
                -0.40 / -2.33%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                16.00
             |                           
            
                16.80
             | 
            
                16.60
             |                     
            
                16.80
             |                                 
            
                123,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2010
             | 
            
                -0.60 / -3.37%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.00
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                17.20
             |                                 
            
                57,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2010
             | 
            
                +0.10 / +0.56%
             |             
            
                17.50
             |           
            
                18.10
             |               
            
                17.30
             |                           
            
                17.80
             | 
            
                17.80
             |                     
            
                17.80
             |                                 
            
                26,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2010
             | 
            
                -0.90 / -4.84%
             |             
            
                19.60
             |           
            
                19.60
             |               
            
                17.50
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                17.70
             |                                 
            
                168,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2010
             | 
            
                -3.90 / -17.33%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                18.60
             |                           
            
                18.60
             | 
            
                18.60
             |                     
            
                18.60
             |                                 
            
                127,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2010
             | 
            
                +0.90 / +4.17%
             |             
            
                22.50
             |           
            
                22.50
             |               
            
                21.40
             |                           
            
                22.50
             | 
            
                21.60
             |                     
            
                22.50
             |                                 
            
                187,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2010
             | 
            
                -0.20 / -0.92%
             |             
            
                22.80
             |           
            
                22.80
             |               
            
                20.00
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                21.60
             |                                 
            
                195,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2010
             | 
            
                -0.80 / -3.54%
             |             
            
                21.50
             |           
            
                22.60
             |               
            
                21.30
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                21.80
             |                                 
            
                734,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2010
             | 
            
                -1.40 / -5.83%
             |             
            
                22.70
             |           
            
                24.50
             |               
            
                22.60
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                22.60
             |                                 
            
                138,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2010
             | 
            
                -1.50 / -5.88%
             |             
            
                25.70
             |           
            
                25.70
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                24.00
             |                                 
            
                76,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2010
             | 
            
                -0.80 / -3.04%
             |             
            
                26.00
             |           
            
                26.10
             |               
            
                25.40
             |                           
            
                25.50
             | 
            
                25.75
             |                     
            
                25.50
             |                                 
            
                77,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2010
             | 
            
                -0.80 / -2.95%
             |             
            
                27.10
             |           
            
                27.50
             |               
            
                26.30
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                26.30
             |                                 
            
                59,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2010
             | 
            
                +1.40 / +5.45%
             |             
            
                27.10
             |           
            
                27.10
             |               
            
                26.50
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                27.10
             |                                 
            
                200,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2010
             | 
            
                +1.60 / +6.64%
             |             
            
                22.60
             |           
            
                25.70
             |               
            
                22.60
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                25.70
             |                                 
            
                87,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2010
             | 
            
                -1.80 / -6.95%
             |             
            
                24.10
             |           
            
                24.20
             |               
            
                24.10
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                24.10
             |                                 
            
                212,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2010
             | 
            
                -1.90 / -6.83%
             |             
            
                25.90
             |           
            
                25.90
             |               
            
                25.90
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                25.90
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |