| 
                 
                    Closing price on 9/18/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.80 | 
                 
                
                    | High | 
                    13.90 | 
                 
                
                    | Low | 
                    13.70 | 
                     
                
                    | Volume | 
                    118,320 | 
                                 
                
                    | Split-adjusted Price | 
                    5.83 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/18/2013
             | 
            
                -0.20 / -1.44%
             |             
            
                13.80
             |           
            
                13.90
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.74
             |                     
            
                5.83
             |                                 
            
                118,320
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2013
             | 
            
                -0.10 / -0.71%
             |             
            
                12.60
             |           
            
                14.20
             |               
            
                12.60
             |                           
            
                13.90
             | 
            
                13.82
             |                     
            
                5.92
             |                                 
            
                131,014
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                14.10
             |           
            
                14.20
             |               
            
                13.90
             |                           
            
                14.00
             | 
            
                14.07
             |                     
            
                5.96
             |                                 
            
                32,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.90
             |                           
            
                14.00
             | 
            
                13.95
             |                     
            
                5.96
             |                                 
            
                36,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                14.10
             |           
            
                14.20
             |               
            
                13.90
             |                           
            
                14.00
             | 
            
                13.96
             |                     
            
                5.96
             |                                 
            
                100,574
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2013
             | 
            
                +0.10 / +0.72%
             |             
            
                14.00
             |           
            
                14.20
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.08
             |                     
            
                5.96
             |                                 
            
                202,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2013
             | 
            
                +0.20 / +1.46%
             |             
            
                13.60
             |           
            
                14.00
             |               
            
                13.50
             |                           
            
                13.90
             | 
            
                13.88
             |                     
            
                5.92
             |                                 
            
                120,597
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2013
             | 
            
                -0.40 / -2.84%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.40
             |                           
            
                13.70
             | 
            
                13.68
             |                     
            
                5.83
             |                                 
            
                145,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                14.10
             |           
            
                14.20
             |               
            
                14.00
             |                           
            
                14.10
             | 
            
                14.12
             |                     
            
                6.00
             |                                 
            
                93,613
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2013
             | 
            
                +0.40 / +2.92%
             |             
            
                13.90
             |           
            
                14.10
             |               
            
                13.80
             |                           
            
                14.10
             | 
            
                13.98
             |                     
            
                6.00
             |                                 
            
                93,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2013
             | 
            
                -0.30 / -2.14%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.84
             |                     
            
                5.83
             |                                 
            
                171,565
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2013
             | 
            
                -0.40 / -2.78%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.14
             |                     
            
                5.96
             |                                 
            
                103,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2013
             | 
            
                +0.20 / +1.41%
             |             
            
                14.20
             |           
            
                14.40
             |               
            
                14.00
             |                           
            
                14.40
             | 
            
                14.16
             |                     
            
                6.13
             |                                 
            
                61,060
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2013
             | 
            
                +0.10 / +0.71%
             |             
            
                14.20
             |           
            
                14.30
             |               
            
                14.00
             |                           
            
                14.20
             | 
            
                14.11
             |                     
            
                6.05
             |                                 
            
                93,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2013
             | 
            
                -0.40 / -2.76%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.00
             |                           
            
                14.10
             | 
            
                14.17
             |                     
            
                6.00
             |                                 
            
                237,819
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2013
             | 
            
                -0.20 / -1.36%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                14.40
             |                           
            
                14.50
             | 
            
                14.52
             |                     
            
                6.17
             |                                 
            
                33,423
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                14.60
             |           
            
                14.70
             |               
            
                14.30
             |                           
            
                14.70
             | 
            
                14.50
             |                     
            
                6.26
             |                                 
            
                130,697
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2013
             | 
            
                -0.10 / -0.68%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.60
             |                           
            
                14.70
             | 
            
                14.71
             |                     
            
                6.26
             |                                 
            
                217,574
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2013
             | 
            
                -0.30 / -1.99%
             |             
            
                15.00
             |           
            
                15.10
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.74
             |                     
            
                6.30
             |                                 
            
                202,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.10
             |           
            
                15.10
             |               
            
                14.90
             |                           
            
                15.10
             | 
            
                15.00
             |                     
            
                6.43
             |                                 
            
                174,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2013
             | 
            
                -0.30 / -1.95%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.00
             |                           
            
                15.10
             | 
            
                15.16
             |                     
            
                6.43
             |                                 
            
                156,949
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2013
             | 
            
                +0.20 / +1.32%
             |             
            
                15.20
             |           
            
                15.40
             |               
            
                15.20
             |                           
            
                15.40
             | 
            
                15.30
             |                     
            
                6.56
             |                                 
            
                208,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2013
             | 
            
                +0.30 / +2.01%
             |             
            
                14.90
             |           
            
                15.30
             |               
            
                14.90
             |                           
            
                15.20
             | 
            
                15.18
             |                     
            
                6.47
             |                                 
            
                318,680
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2013
             | 
            
                -0.20 / -1.32%
             |             
            
                15.10
             |           
            
                15.30
             |               
            
                14.90
             |                           
            
                14.90
             | 
            
                15.03
             |                     
            
                6.34
             |                                 
            
                172,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2013
             | 
            
                +0.50 / +3.42%
             |             
            
                14.60
             |           
            
                15.10
             |               
            
                14.50
             |                           
            
                15.10
             | 
            
                14.76
             |                     
            
                6.43
             |                                 
            
                289,767
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2013
             | 
            
                -0.20 / -1.35%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.60
             |                           
            
                14.60
             | 
            
                14.68
             |                     
            
                6.22
             |                                 
            
                244,598
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2013
             | 
            
                -0.10 / -0.67%
             |             
            
                14.90
             |           
            
                15.10
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.84
             |                     
            
                6.30
             |                                 
            
                148,220
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2013
             | 
            
                -0.50 / -3.25%
             |             
            
                15.30
             |           
            
                15.30
             |               
            
                14.70
             |                           
            
                14.90
             | 
            
                14.99
             |                     
            
                6.34
             |                                 
            
                968,885
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2013
             | 
            
                -0.20 / -1.28%
             |             
            
                15.70
             |           
            
                15.70
             |               
            
                15.30
             |                           
            
                15.40
             | 
            
                15.47
             |                     
            
                6.56
             |                                 
            
                262,987
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2013
             | 
            
                +0.10 / +0.65%
             |             
            
                15.70
             |           
            
                15.70
             |               
            
                15.50
             |                           
            
                15.60
             | 
            
                15.65
             |                     
            
                6.64
             |                                 
            
                257,833
             |  
            
                 
             |                                                              
             
    
         
    
    
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