| 
                 
                    Closing price on 8/8/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    16.90 | 
                 
                
                    | High | 
                    17.00 | 
                 
                
                    | Low | 
                    16.60 | 
                     
                
                    | Volume | 
                    51,127 | 
                                 
                
                    | Split-adjusted Price | 
                    5.76 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PLC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/8/2013
             | 
            
                -0.40 / -2.35%
             |             
            
                16.90
             |           
            
                17.00
             |               
            
                16.60
             |                           
            
                16.60
             | 
            
                16.83
             |                     
            
                5.76
             |                                 
            
                51,127
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                16.50
             |           
            
                17.00
             |               
            
                16.50
             |                           
            
                17.00
             | 
            
                16.96
             |                     
            
                5.90
             |                                 
            
                63,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2013
             | 
            
                +0.30 / +1.80%
             |             
            
                16.60
             |           
            
                17.00
             |               
            
                16.50
             |                           
            
                17.00
             | 
            
                16.79
             |                     
            
                5.90
             |                                 
            
                79,515
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2013
             | 
            
                +0.70 / +4.38%
             |             
            
                16.30
             |           
            
                16.70
             |               
            
                16.30
             |                           
            
                16.70
             | 
            
                16.45
             |                     
            
                5.79
             |                                 
            
                71,901
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.40
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                5.55
             |                                 
            
                178,021
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.90
             |           
            
                16.00
             |               
            
                15.90
             |                           
            
                16.00
             | 
            
                15.99
             |                     
            
                5.55
             |                                 
            
                12,434
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2013
             | 
            
                0.00 / 0.00%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.10
             |                     
            
                5.55
             |                                 
            
                32,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2013
             | 
            
                -0.10 / -0.62%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                5.55
             |                                 
            
                149,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                16.00
             |                           
            
                16.10
             | 
            
                16.17
             |                     
            
                5.59
             |                                 
            
                82,530
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2013
             | 
            
                -0.40 / -2.42%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.21
             |                     
            
                5.59
             |                                 
            
                27,162
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2013
             | 
            
                +0.10 / +0.61%
             |             
            
                16.30
             |           
            
                16.50
             |               
            
                16.30
             |                           
            
                16.50
             | 
            
                16.40
             |                     
            
                5.72
             |                                 
            
                39,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2013
             | 
            
                -0.40 / -2.38%
             |             
            
                16.70
             |           
            
                16.70
             |               
            
                16.40
             |                           
            
                16.40
             | 
            
                16.56
             |                     
            
                5.69
             |                                 
            
                29,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2013
             | 
            
                +0.60 / +3.70%
             |             
            
                16.30
             |           
            
                17.00
             |               
            
                16.30
             |                           
            
                16.80
             | 
            
                16.84
             |                     
            
                5.83
             |                                 
            
                91,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2013
             | 
            
                -0.20 / -1.22%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.27
             |                     
            
                5.62
             |                                 
            
                7,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2013
             | 
            
                +0.30 / +1.86%
             |             
            
                16.20
             |           
            
                16.40
             |               
            
                16.20
             |                           
            
                16.40
             | 
            
                16.25
             |                     
            
                5.69
             |                                 
            
                22,059
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.20
             |               
            
                15.90
             |                           
            
                16.10
             | 
            
                16.15
             |                     
            
                5.59
             |                                 
            
                38,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.10
             |               
            
                15.90
             |                           
            
                16.10
             | 
            
                15.98
             |                     
            
                5.59
             |                                 
            
                23,351
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2013
             | 
            
                +0.30 / +1.90%
             |             
            
                15.80
             |           
            
                16.10
             |               
            
                15.80
             |                           
            
                16.10
             | 
            
                16.01
             |                     
            
                5.59
             |                                 
            
                16,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.80
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                5.48
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.70
             |           
            
                15.90
             |               
            
                15.60
             |                           
            
                15.80
             | 
            
                15.77
             |                     
            
                5.48
             |                                 
            
                126,071
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.60
             |           
            
                15.80
             |               
            
                15.60
             |                           
            
                15.80
             | 
            
                15.74
             |                     
            
                5.48
             |                                 
            
                9,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.70
             |                           
            
                15.80
             | 
            
                15.72
             |                     
            
                5.48
             |                                 
            
                17,597
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2013
             | 
            
                +0.10 / +0.64%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.80
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                5.48
             |                                 
            
                22,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2013
             | 
            
                -0.10 / -0.63%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.70
             |                           
            
                15.70
             | 
            
                15.79
             |                     
            
                5.45
             |                                 
            
                10,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2013
             | 
            
                -0.20 / -1.25%
             |             
            
                15.80
             |           
            
                15.90
             |               
            
                15.80
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                5.48
             |                                 
            
                13,880
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2013
             | 
            
                +0.10 / +0.63%
             |             
            
                15.80
             |           
            
                16.00
             |               
            
                15.80
             |                           
            
                16.00
             | 
            
                15.87
             |                     
            
                5.55
             |                                 
            
                9,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.80
             |           
            
                15.90
             |               
            
                15.70
             |                           
            
                15.90
             | 
            
                15.81
             |                     
            
                5.52
             |                                 
            
                13,406
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.80
             |                           
            
                15.90
             | 
            
                15.83
             |                     
            
                5.52
             |                                 
            
                13,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2013
             | 
            
                -0.30 / -1.85%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                15.80
             |                           
            
                15.90
             | 
            
                15.89
             |                     
            
                5.52
             |                                 
            
                20,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2013
             | 
            
                +0.20 / +1.25%
             |             
            
                16.00
             |           
            
                16.20
             |               
            
                15.80
             |                           
            
                16.20
             | 
            
                15.98
             |                     
            
                5.62
             |                                 
            
                289,800
             |  
            
                 
             |                                                              
             
    
         
    
    
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