| 
                 
                    Closing price on 3/27/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.60 | 
                 
                
                    | High | 
                    5.60 | 
                 
                
                    | Low | 
                    5.30 | 
                     
                
                    | Volume | 
                    4,250,324 | 
                                 
                
                    | Split-adjusted Price | 
                    5.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVX Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/27/2013
             | 
            
                -0.10 / -1.79%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.30
             |                           
            
                5.50
             | 
            
                5.47
             |                     
            
                5.50
             |                                 
            
                4,250,324
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2013
             | 
            
                -0.10 / -1.75%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.65
             |                     
            
                5.60
             |                                 
            
                3,175,138
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2013
             | 
            
                +0.10 / +1.79%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.64
             |                     
            
                5.70
             |                                 
            
                2,928,835
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2013
             | 
            
                -0.30 / -5.08%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.63
             |                     
            
                5.60
             |                                 
            
                6,447,879
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2013
             | 
            
                +0.10 / +1.72%
             |             
            
                5.80
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.84
             |                     
            
                5.90
             |                                 
            
                2,525,736
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.90
             |                     
            
                5.80
             |                                 
            
                3,651,237
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.80
             | 
            
                5.76
             |                     
            
                5.80
             |                                 
            
                3,259,850
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2013
             | 
            
                -0.30 / -4.92%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.90
             |                     
            
                5.80
             |                                 
            
                4,965,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2013
             | 
            
                +0.20 / +3.39%
             |             
            
                5.80
             |           
            
                6.20
             |               
            
                5.70
             |                           
            
                6.10
             | 
            
                5.96
             |                     
            
                6.10
             |                                 
            
                7,249,751
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2013
             | 
            
                +0.20 / +3.51%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.90
             | 
            
                5.79
             |                     
            
                5.90
             |                                 
            
                6,340,574
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2013
             | 
            
                -0.50 / -8.06%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.94
             |                     
            
                5.70
             |                                 
            
                7,590,195
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2013
             | 
            
                -0.10 / -1.59%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                5.90
             |                           
            
                6.20
             | 
            
                6.10
             |                     
            
                6.20
             |                                 
            
                8,601,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2013
             | 
            
                +0.50 / +8.62%
             |             
            
                5.80
             |           
            
                6.30
             |               
            
                5.70
             |                           
            
                6.30
             | 
            
                6.05
             |                     
            
                6.30
             |                                 
            
                7,564,567
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2013
             | 
            
                +0.30 / +5.45%
             |             
            
                5.30
             |           
            
                5.80
             |               
            
                5.30
             |                           
            
                5.80
             | 
            
                5.69
             |                     
            
                5.80
             |                                 
            
                4,615,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2013
             | 
            
                -0.10 / -1.79%
             |             
            
                5.10
             |           
            
                5.80
             |               
            
                5.10
             |                           
            
                5.50
             | 
            
                5.57
             |                     
            
                5.50
             |                                 
            
                6,522,001
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2013
             | 
            
                +0.50 / +9.80%
             |             
            
                4.90
             |           
            
                5.60
             |               
            
                4.90
             |                           
            
                5.60
             | 
            
                5.42
             |                     
            
                5.60
             |                                 
            
                4,625,085
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2013
             | 
            
                -0.30 / -5.56%
             |             
            
                5.20
             |           
            
                5.50
             |               
            
                5.00
             |                           
            
                5.10
             | 
            
                5.20
             |                     
            
                5.10
             |                                 
            
                7,627,376
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2013
             | 
            
                -0.50 / -8.47%
             |             
            
                5.50
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.49
             |                     
            
                5.40
             |                                 
            
                12,645,275
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.40
             |           
            
                6.20
             |               
            
                5.40
             |                           
            
                5.90
             | 
            
                5.92
             |                     
            
                5.90
             |                                 
            
                4,833,085
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2013
             | 
            
                -0.20 / -3.28%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                6.10
             |                     
            
                5.90
             |                                 
            
                4,747,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2013
             | 
            
                -0.20 / -3.17%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                5.70
             |                           
            
                6.10
             | 
            
                5.85
             |                     
            
                6.10
             |                                 
            
                13,572,294
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2013
             | 
            
                -0.70 / -10.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.48
             |                     
            
                6.30
             |                                 
            
                11,782,484
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2013
             | 
            
                -0.30 / -4.11%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                7.00
             | 
            
                6.96
             |                     
            
                7.00
             |                                 
            
                5,983,146
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2013
             | 
            
                -0.20 / -2.67%
             |             
            
                7.10
             |           
            
                7.70
             |               
            
                6.80
             |                           
            
                7.30
             | 
            
                7.11
             |                     
            
                7.30
             |                                 
            
                16,049,923
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2013
             | 
            
                -0.80 / -9.64%
             |             
            
                8.50
             |           
            
                8.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.84
             |                     
            
                7.50
             |                                 
            
                15,030,505
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2013
             | 
            
                +0.50 / +6.41%
             |             
            
                7.80
             |           
            
                8.40
             |               
            
                7.60
             |                           
            
                8.30
             | 
            
                7.97
             |                     
            
                8.30
             |                                 
            
                8,523,391
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2013
             | 
            
                +0.10 / +1.30%
             |             
            
                7.60
             |           
            
                8.10
             |               
            
                7.50
             |                           
            
                7.80
             | 
            
                7.85
             |                     
            
                7.80
             |                                 
            
                10,146,074
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2013
             | 
            
                -0.10 / -1.28%
             |             
            
                7.70
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                7.70
             |                                 
            
                6,355,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2013
             | 
            
                -0.10 / -1.27%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.85
             |                     
            
                7.80
             |                                 
            
                4,906,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2013
             | 
            
                +0.60 / +8.22%
             |             
            
                7.30
             |           
            
                7.90
             |               
            
                7.30
             |                           
            
                7.90
             | 
            
                7.69
             |                     
            
                7.90
             |                                 
            
                8,909,605
             |  
            
                 
             |                                                              
             
    
         
    
    
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