| 
                 
                    Closing price on 10/23/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.80 | 
                 
                
                    | High | 
                    6.80 | 
                 
                
                    | Low | 
                    6.70 | 
                     
                
                    | Volume | 
                    9,200 | 
                                 
                
                    | Split-adjusted Price | 
                    4.59 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
POT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                4.59
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2013
             | 
            
                -0.10 / -1.47%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.78
             |                     
            
                4.59
             |                                 
            
                6,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.70
             |           
            
                6.80
             |               
            
                6.60
             |                           
            
                6.80
             | 
            
                6.73
             |                     
            
                4.66
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2013
             | 
            
                -0.10 / -1.43%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                4.73
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                6.98
             |                     
            
                4.80
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2013
             | 
            
                +0.50 / +7.69%
             |             
            
                6.60
             |           
            
                7.10
             |               
            
                6.60
             |                           
            
                7.00
             | 
            
                6.81
             |                     
            
                4.80
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                4.45
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2013
             | 
            
                -0.10 / -1.52%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.58
             |                     
            
                4.45
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.60
             |           
            
                6.80
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.72
             |                     
            
                4.52
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2013
             | 
            
                -0.20 / -2.94%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.60
             |                     
            
                4.52
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2013
             | 
            
                +0.30 / +4.62%
             |             
            
                6.50
             |           
            
                6.80
             |               
            
                6.50
             |                           
            
                6.80
             | 
            
                6.70
             |                     
            
                4.66
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2013
             | 
            
                -0.20 / -2.99%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                4.45
             |                                 
            
                180
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.60
             |           
            
                6.70
             |               
            
                6.50
             |                           
            
                6.70
             | 
            
                6.59
             |                     
            
                4.59
             |                                 
            
                11,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2013
             | 
            
                -0.10 / -1.47%
             |             
            
                6.70
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.71
             |                     
            
                4.59
             |                                 
            
                6,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                5,915
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.86
             |                     
            
                4.66
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2013
             | 
            
                +0.20 / +3.03%
             |             
            
                6.60
             |           
            
                6.80
             |               
            
                6.60
             |                           
            
                6.80
             | 
            
                6.78
             |                     
            
                4.66
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2013
             | 
            
                -0.10 / -1.49%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.62
             |                     
            
                4.52
             |                                 
            
                5,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                4.59
             |                                 
            
                24,984
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2013
             | 
            
                -0.10 / -1.47%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.84
             |                     
            
                4.59
             |                                 
            
                13,850
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                24
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.83
             |                     
            
                4.66
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2013
             | 
            
                +0.10 / +1.49%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                4.66
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2013
             | 
            
                -0.20 / -2.90%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.84
             |                     
            
                4.59
             |                                 
            
                11,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2013
             | 
            
                +0.10 / +1.47%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.88
             |                     
            
                4.73
             |                                 
            
                5,056
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2013
             | 
            
                -0.20 / -2.86%
             |             
            
                6.40
             |           
            
                6.80
             |               
            
                6.40
             |                           
            
                6.80
             | 
            
                6.75
             |                     
            
                4.66
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2013
             | 
            
                +0.30 / +4.48%
             |             
            
                6.80
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                7.00
             | 
            
                6.93
             |                     
            
                4.80
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |