| 
                 
                    Closing price on 2/4/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.50 | 
                 
                
                    | High | 
                    13.80 | 
                 
                
                    | Low | 
                    13.50 | 
                     
                
                    | Volume | 
                    258,653 | 
                                 
                
                    | Split-adjusted Price | 
                    5.75 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.80
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.66
             |                     
            
                5.75
             |                                 
            
                258,653
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.50
             | 
            
                13.37
             |                     
            
                5.75
             |                                 
            
                271,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2013
             | 
            
                -0.20 / -1.46%
             |             
            
                13.60
             |           
            
                13.80
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.62
             |                     
            
                5.75
             |                                 
            
                268,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.70
             |           
            
                13.80
             |               
            
                13.60
             |                           
            
                13.70
             | 
            
                13.72
             |                     
            
                5.83
             |                                 
            
                400,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2013
             | 
            
                +0.10 / +0.74%
             |             
            
                13.60
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.70
             | 
            
                13.54
             |                     
            
                5.83
             |                                 
            
                233,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2013
             | 
            
                +0.10 / +0.74%
             |             
            
                13.60
             |           
            
                13.90
             |               
            
                13.50
             |                           
            
                13.60
             | 
            
                13.74
             |                     
            
                5.79
             |                                 
            
                351,692
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2013
             | 
            
                +0.30 / +2.27%
             |             
            
                13.30
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.50
             | 
            
                13.42
             |                     
            
                5.75
             |                                 
            
                278,116
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.10
             |           
            
                13.40
             |               
            
                13.10
             |                           
            
                13.20
             | 
            
                13.25
             |                     
            
                5.62
             |                                 
            
                293,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2013
             | 
            
                +0.10 / +0.77%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.80
             |                           
            
                13.10
             | 
            
                12.96
             |                     
            
                5.58
             |                                 
            
                338,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2013
             | 
            
                -0.30 / -2.26%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.80
             |                           
            
                13.00
             | 
            
                13.05
             |                     
            
                5.53
             |                                 
            
                467,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2013
             | 
            
                -0.20 / -1.48%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.43
             |                     
            
                5.66
             |                                 
            
                305,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2013
             | 
            
                -0.20 / -1.46%
             |             
            
                13.50
             |           
            
                13.80
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.53
             |                     
            
                5.75
             |                                 
            
                639,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2013
             | 
            
                -0.30 / -2.14%
             |             
            
                14.00
             |           
            
                14.10
             |               
            
                13.60
             |                           
            
                13.70
             | 
            
                13.80
             |                     
            
                5.83
             |                                 
            
                524,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2013
             | 
            
                -0.10 / -0.71%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.21
             |                     
            
                5.96
             |                                 
            
                638,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2013
             | 
            
                +0.70 / +5.22%
             |             
            
                13.50
             |           
            
                14.40
             |               
            
                13.50
             |                           
            
                14.10
             | 
            
                13.89
             |                     
            
                6.00
             |                                 
            
                1,268,702
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2013
             | 
            
                -0.10 / -0.74%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.40
             | 
            
                13.45
             |                     
            
                5.70
             |                                 
            
                363,639
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.80
             |           
            
                14.00
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.66
             |                     
            
                5.75
             |                                 
            
                420,797
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2013
             | 
            
                +0.20 / +1.50%
             |             
            
                13.30
             |           
            
                13.70
             |               
            
                13.20
             |                           
            
                13.50
             | 
            
                13.43
             |                     
            
                5.75
             |                                 
            
                510,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2013
             | 
            
                -0.40 / -2.92%
             |             
            
                13.80
             |           
            
                14.10
             |               
            
                13.20
             |                           
            
                13.30
             | 
            
                13.70
             |                     
            
                5.66
             |                                 
            
                727,901
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2013
             | 
            
                +0.20 / +1.48%
             |             
            
                13.70
             |           
            
                14.00
             |               
            
                13.50
             |                           
            
                13.70
             | 
            
                13.67
             |                     
            
                5.83
             |                                 
            
                474,908
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2013
             | 
            
                +0.10 / +0.75%
             |             
            
                13.60
             |           
            
                13.90
             |               
            
                13.30
             |                           
            
                13.50
             | 
            
                13.59
             |                     
            
                5.75
             |                                 
            
                927,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2013
             | 
            
                +0.30 / +2.29%
             |             
            
                13.30
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.40
             | 
            
                13.39
             |                     
            
                5.70
             |                                 
            
                436,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2013
             | 
            
                -0.40 / -2.96%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                12.90
             |                           
            
                13.10
             | 
            
                13.26
             |                     
            
                5.58
             |                                 
            
                551,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2013
             | 
            
                +0.40 / +3.05%
             |             
            
                13.10
             |           
            
                13.70
             |               
            
                13.10
             |                           
            
                13.50
             | 
            
                13.44
             |                     
            
                5.75
             |                                 
            
                575,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2012
             | 
            
                +0.10 / +0.77%
             |             
            
                12.90
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                13.10
             | 
            
                13.00
             |                     
            
                5.58
             |                                 
            
                369,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2012
             | 
            
                +0.40 / +3.17%
             |             
            
                12.70
             |           
            
                13.30
             |               
            
                12.70
             |                           
            
                13.00
             | 
            
                13.03
             |                     
            
                5.53
             |                                 
            
                599,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2012
             | 
            
                +0.20 / +1.61%
             |             
            
                12.40
             |           
            
                12.70
             |               
            
                12.30
             |                           
            
                12.60
             | 
            
                12.41
             |                     
            
                5.36
             |                                 
            
                489,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2012
             | 
            
                -0.10 / -0.80%
             |             
            
                12.00
             |           
            
                12.60
             |               
            
                12.00
             |                           
            
                12.40
             | 
            
                12.36
             |                     
            
                5.28
             |                                 
            
                221,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2012
             | 
            
                +0.20 / +1.63%
             |             
            
                12.40
             |           
            
                12.50
             |               
            
                12.20
             |                           
            
                12.50
             | 
            
                12.35
             |                     
            
                5.32
             |                                 
            
                83,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.20
             |           
            
                12.30
             |               
            
                12.10
             |                           
            
                12.30
             | 
            
                12.20
             |                     
            
                5.24
             |                                 
            
                73,956
             |  
            
                 
             |                                                              
             
    
         
    
    
 |