| 
                 
                    Closing price on 9/8/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.20 | 
                 
                
                    | High | 
                    6.20 | 
                 
                
                    | Low | 
                    5.90 | 
                     
                
                    | Volume | 
                    1,246,200 | 
                                 
                
                    | Split-adjusted Price | 
                    6.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVL Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/8/2011
             | 
            
                +0.10 / +1.69%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.15
             |                     
            
                6.00
             |                                 
            
                1,246,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2011
             | 
            
                +0.30 / +5.36%
             |             
            
                5.50
             |           
            
                5.90
             |               
            
                5.50
             |                           
            
                5.90
             | 
            
                5.80
             |                     
            
                5.90
             |                                 
            
                1,231,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2011
             | 
            
                -0.30 / -5.08%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.64
             |                     
            
                5.60
             |                                 
            
                825,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2011
             | 
            
                +0.20 / +3.51%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.80
             |                           
            
                5.90
             | 
            
                5.98
             |                     
            
                5.90
             |                                 
            
                1,361,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2011
             | 
            
                +0.20 / +3.64%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.40
             |                           
            
                5.70
             | 
            
                5.66
             |                     
            
                5.70
             |                                 
            
                442,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2011
             | 
            
                +0.30 / +5.77%
             |             
            
                5.40
             |           
            
                5.50
             |               
            
                5.10
             |                           
            
                5.50
             | 
            
                5.44
             |                     
            
                5.50
             |                                 
            
                1,640,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2011
             | 
            
                +0.30 / +6.12%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.19
             |                     
            
                5.20
             |                                 
            
                1,366,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2011
             | 
            
                +0.30 / +6.52%
             |             
            
                4.60
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.90
             | 
            
                4.85
             |                     
            
                4.90
             |                                 
            
                746,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.61
             |                     
            
                4.60
             |                                 
            
                276,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.63
             |                     
            
                4.60
             |                                 
            
                137,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2011
             | 
            
                -0.10 / -2.13%
             |             
            
                4.70
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.69
             |                     
            
                4.60
             |                                 
            
                255,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2011
             | 
            
                -0.10 / -2.08%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.71
             |                     
            
                4.70
             |                                 
            
                403,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2011
             | 
            
                +0.40 / +9.09%
             |             
            
                4.40
             |           
            
                4.80
             |               
            
                4.40
             |                           
            
                4.80
             | 
            
                4.78
             |                     
            
                4.80
             |                                 
            
                598,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2011
             | 
            
                -0.20 / -4.35%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.48
             |                     
            
                4.40
             |                                 
            
                459,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2011
             | 
            
                +0.20 / +4.55%
             |             
            
                4.50
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.68
             |                     
            
                4.60
             |                                 
            
                902,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2011
             | 
            
                +0.20 / +4.76%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.36
             |                     
            
                4.40
             |                                 
            
                337,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.21
             |                     
            
                4.20
             |                                 
            
                276,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2011
             | 
            
                -0.10 / -2.33%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.23
             |                     
            
                4.20
             |                                 
            
                177,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.32
             |                     
            
                4.30
             |                                 
            
                257,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2011
             | 
            
                -0.10 / -2.27%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.25
             |                     
            
                4.30
             |                                 
            
                222,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2011
             | 
            
                +0.10 / +2.33%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.44
             |                     
            
                4.40
             |                                 
            
                302,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2011
             | 
            
                -0.30 / -6.52%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                852,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2011
             | 
            
                -0.10 / -2.13%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.63
             |                     
            
                4.60
             |                                 
            
                182,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2011
             | 
            
                -0.10 / -2.08%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.79
             |                     
            
                4.70
             |                                 
            
                268,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2011
             | 
            
                +0.20 / +4.35%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.50
             |                           
            
                4.80
             | 
            
                4.75
             |                     
            
                4.80
             |                                 
            
                542,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.60
             | 
            
                4.48
             |                     
            
                4.60
             |                                 
            
                392,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2011
             | 
            
                -0.20 / -4.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.58
             |                     
            
                4.60
             |                                 
            
                487,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2011
             | 
            
                -0.20 / -4.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.83
             |                     
            
                4.80
             |                                 
            
                413,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2011
             | 
            
                -0.10 / -1.96%
             |             
            
                5.10
             |           
            
                5.40
             |               
            
                4.80
             |                           
            
                5.00
             | 
            
                5.12
             |                     
            
                5.00
             |                                 
            
                653,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2011
             | 
            
                +0.30 / +6.25%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                5.10
             |                                 
            
                1,018,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |