| 
                 
                    Closing price on 5/31/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.80 | 
                 
                
                    | High | 
                    7.10 | 
                 
                
                    | Low | 
                    6.70 | 
                     
                
                    | Volume | 
                    487,300 | 
                                 
                
                    | Split-adjusted Price | 
                    6.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVL Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/31/2011
             | 
            
                -0.10 / -1.43%
             |             
            
                6.80
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.93
             |                     
            
                6.90
             |                                 
            
                487,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2011
             | 
            
                -0.40 / -5.41%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                6.70
             |                           
            
                7.00
             | 
            
                7.07
             |                     
            
                7.00
             |                                 
            
                448,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2011
             | 
            
                +0.40 / +5.71%
             |             
            
                7.20
             |           
            
                7.40
             |               
            
                6.90
             |                           
            
                7.40
             | 
            
                7.23
             |                     
            
                7.40
             |                                 
            
                669,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2011
             | 
            
                +0.30 / +4.48%
             |             
            
                6.70
             |           
            
                7.40
             |               
            
                6.70
             |                           
            
                7.00
             | 
            
                7.01
             |                     
            
                7.00
             |                                 
            
                740,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2011
             | 
            
                -0.50 / -6.94%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                7.05
             |                     
            
                6.70
             |                                 
            
                496,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2011
             | 
            
                -0.30 / -4.00%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                6.90
             |                           
            
                7.20
             | 
            
                7.15
             |                     
            
                7.20
             |                                 
            
                752,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2011
             | 
            
                +0.60 / +8.70%
             |             
            
                6.90
             |           
            
                7.50
             |               
            
                6.70
             |                           
            
                7.50
             | 
            
                7.00
             |                     
            
                7.50
             |                                 
            
                909,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2011
             | 
            
                -0.10 / -1.43%
             |             
            
                7.00
             |           
            
                7.40
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                7.05
             |                     
            
                6.90
             |                                 
            
                348,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2011
             | 
            
                -0.30 / -4.11%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                7.00
             |                                 
            
                119,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2011
             | 
            
                +0.10 / +1.39%
             |             
            
                7.10
             |           
            
                7.30
             |               
            
                6.90
             |                           
            
                7.30
             | 
            
                7.05
             |                     
            
                7.30
             |                                 
            
                313,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2011
             | 
            
                -0.30 / -4.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.34
             |                     
            
                7.20
             |                                 
            
                171,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2011
             | 
            
                -0.20 / -2.60%
             |             
            
                7.10
             |           
            
                7.60
             |               
            
                7.10
             |                           
            
                7.50
             | 
            
                7.41
             |                     
            
                7.50
             |                                 
            
                285,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.59
             |                     
            
                7.70
             |                                 
            
                149,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2011
             | 
            
                +0.10 / +1.32%
             |             
            
                7.60
             |           
            
                7.70
             |               
            
                7.60
             |                           
            
                7.70
             | 
            
                7.67
             |                     
            
                7.70
             |                                 
            
                78,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2011
             | 
            
                -0.20 / -2.56%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.76
             |                     
            
                7.60
             |                                 
            
                231,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.60
             |                           
            
                7.80
             | 
            
                7.77
             |                     
            
                7.80
             |                                 
            
                162,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2011
             | 
            
                -0.10 / -1.27%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.91
             |                     
            
                7.80
             |                                 
            
                160,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2011
             | 
            
                +0.10 / +1.28%
             |             
            
                7.50
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.90
             | 
            
                7.77
             |                     
            
                7.90
             |                                 
            
                170,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2011
             | 
            
                +0.10 / +1.30%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                7.80
             |                                 
            
                171,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2011
             | 
            
                -0.20 / -2.53%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.82
             |                     
            
                7.70
             |                                 
            
                90,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2011
             | 
            
                +0.20 / +2.60%
             |             
            
                8.00
             |           
            
                8.20
             |               
            
                7.70
             |                           
            
                7.90
             | 
            
                8.01
             |                     
            
                7.90
             |                                 
            
                208,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2011
             | 
            
                -0.10 / -1.28%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.81
             |                     
            
                7.70
             |                                 
            
                230,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2011
             | 
            
                -0.20 / -2.50%
             |             
            
                7.90
             |           
            
                8.10
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.91
             |                     
            
                7.80
             |                                 
            
                111,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2011
             | 
            
                -0.30 / -3.61%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                8.16
             |                     
            
                8.00
             |                                 
            
                337,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2011
             | 
            
                +0.30 / +3.75%
             |             
            
                7.80
             |           
            
                8.30
             |               
            
                7.80
             |                           
            
                8.30
             | 
            
                8.22
             |                     
            
                8.30
             |                                 
            
                502,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2011
             | 
            
                +0.20 / +2.56%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                8.00
             | 
            
                7.79
             |                     
            
                8.00
             |                                 
            
                270,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2011
             | 
            
                -0.20 / -2.50%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.98
             |                     
            
                7.80
             |                                 
            
                269,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2011
             | 
            
                +0.20 / +2.56%
             |             
            
                7.90
             |           
            
                8.30
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                8.04
             |                     
            
                8.00
             |                                 
            
                369,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2011
             | 
            
                -0.20 / -2.50%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.91
             |                     
            
                7.80
             |                                 
            
                190,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2011
             | 
            
                -0.40 / -4.76%
             |             
            
                8.40
             |           
            
                8.60
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.10
             |                     
            
                8.00
             |                                 
            
                533,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |