| 
                 
                    Closing price on 2/6/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.80 | 
                 
                
                    | High | 
                    7.30 | 
                 
                
                    | Low | 
                    6.80 | 
                     
                
                    | Volume | 
                    7,572,555 | 
                                 
                
                    | Split-adjusted Price | 
                    7.30 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVX Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/6/2013
             | 
            
                +0.40 / +5.80%
             |             
            
                6.80
             |           
            
                7.30
             |               
            
                6.80
             |                           
            
                7.30
             | 
            
                7.07
             |                     
            
                7.30
             |                                 
            
                7,572,555
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.82
             |                     
            
                6.90
             |                                 
            
                4,409,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.10
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.94
             |                     
            
                6.90
             |                                 
            
                6,873,848
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2013
             | 
            
                +0.20 / +2.99%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.50
             |                           
            
                6.90
             | 
            
                6.72
             |                     
            
                6.90
             |                                 
            
                4,282,965
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2013
             | 
            
                -0.30 / -4.29%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.60
             |                           
            
                6.70
             | 
            
                6.87
             |                     
            
                6.70
             |                                 
            
                8,693,360
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2013
             | 
            
                +0.20 / +2.94%
             |             
            
                6.80
             |           
            
                7.30
             |               
            
                6.70
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                7.00
             |                                 
            
                13,872,314
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.60
             |                           
            
                6.80
             | 
            
                6.79
             |                     
            
                6.80
             |                                 
            
                6,924,518
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2013
             | 
            
                +0.40 / +6.25%
             |             
            
                6.40
             |           
            
                7.00
             |               
            
                6.30
             |                           
            
                6.80
             | 
            
                6.72
             |                     
            
                6.80
             |                                 
            
                13,656,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2013
             | 
            
                -0.20 / -3.03%
             |             
            
                6.60
             |           
            
                6.70
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.53
             |                     
            
                6.40
             |                                 
            
                9,180,477
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2013
             | 
            
                +0.40 / +6.45%
             |             
            
                6.10
             |           
            
                6.60
             |               
            
                6.00
             |                           
            
                6.60
             | 
            
                6.32
             |                     
            
                6.60
             |                                 
            
                5,804,988
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2013
             | 
            
                +0.10 / +1.64%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                5.80
             |                           
            
                6.20
             | 
            
                6.07
             |                     
            
                6.20
             |                                 
            
                6,839,582
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2013
             | 
            
                -0.40 / -6.15%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.00
             |                           
            
                6.10
             | 
            
                6.28
             |                     
            
                6.10
             |                                 
            
                10,709,918
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2013
             | 
            
                -0.10 / -1.52%
             |             
            
                6.60
             |           
            
                6.80
             |               
            
                6.40
             |                           
            
                6.50
             | 
            
                6.60
             |                     
            
                6.50
             |                                 
            
                3,953,385
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2013
             | 
            
                +0.20 / +3.13%
             |             
            
                6.30
             |           
            
                6.80
             |               
            
                6.20
             |                           
            
                6.60
             | 
            
                6.47
             |                     
            
                6.60
             |                                 
            
                9,091,945
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2013
             | 
            
                -0.40 / -5.88%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.61
             |                     
            
                6.40
             |                                 
            
                17,301,040
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2013
             | 
            
                -0.20 / -2.86%
             |             
            
                7.10
             |           
            
                7.30
             |               
            
                6.60
             |                           
            
                6.80
             | 
            
                6.98
             |                     
            
                6.80
             |                                 
            
                11,423,829
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2013
             | 
            
                +0.60 / +9.38%
             |             
            
                6.70
             |           
            
                7.00
             |               
            
                6.60
             |                           
            
                7.00
             | 
            
                6.87
             |                     
            
                7.00
             |                                 
            
                13,435,125
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2013
             | 
            
                +0.40 / +6.67%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.40
             | 
            
                6.31
             |                     
            
                6.40
             |                                 
            
                16,314,898
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2013
             | 
            
                +0.30 / +5.26%
             |             
            
                5.70
             |           
            
                6.00
             |               
            
                5.60
             |                           
            
                6.00
             | 
            
                5.99
             |                     
            
                6.00
             |                                 
            
                12,564,968
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.40
             |                           
            
                5.70
             | 
            
                5.58
             |                     
            
                5.70
             |                                 
            
                10,647,744
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2013
             | 
            
                -0.40 / -6.56%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.92
             |                     
            
                5.70
             |                                 
            
                16,167,206
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2013
             | 
            
                +0.30 / +5.17%
             |             
            
                5.80
             |           
            
                6.20
             |               
            
                5.70
             |                           
            
                6.10
             | 
            
                5.95
             |                     
            
                6.10
             |                                 
            
                9,064,885
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2013
             | 
            
                -0.20 / -3.33%
             |             
            
                6.20
             |           
            
                6.40
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                6.12
             |                     
            
                5.80
             |                                 
            
                9,381,940
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2013
             | 
            
                +0.30 / +5.26%
             |             
            
                5.70
             |           
            
                6.00
             |               
            
                5.60
             |                           
            
                6.00
             | 
            
                5.88
             |                     
            
                6.00
             |                                 
            
                9,916,824
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2013
             | 
            
                -0.10 / -1.72%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.81
             |                     
            
                5.70
             |                                 
            
                15,369,050
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2013
             | 
            
                +0.20 / +3.57%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.80
             | 
            
                5.79
             |                     
            
                5.80
             |                                 
            
                7,414,442
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2012
             | 
            
                +0.30 / +5.66%
             |             
            
                5.30
             |           
            
                5.60
             |               
            
                5.20
             |                           
            
                5.60
             | 
            
                5.37
             |                     
            
                5.60
             |                                 
            
                6,355,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2012
             | 
            
                +0.20 / +3.92%
             |             
            
                5.20
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.30
             | 
            
                5.29
             |                     
            
                5.30
             |                                 
            
                11,192,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2012
             | 
            
                +0.10 / +2.00%
             |             
            
                5.00
             |           
            
                5.20
             |               
            
                4.80
             |                           
            
                5.10
             | 
            
                5.00
             |                     
            
                5.10
             |                                 
            
                7,928,246
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.98
             |                     
            
                5.00
             |                                 
            
                7,591,446
             |  
            
                 
             |                                                              
             
    
         
    
    
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