| 
                 
                    Closing price on 4/5/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    19.30 | 
                 
                
                    | High | 
                    19.50 | 
                 
                
                    | Low | 
                    19.30 | 
                     
                
                    | Volume | 
                    800 | 
                                 
                
                    | Split-adjusted Price | 
                    16.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
POT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/5/2018
             | 
            
                +0.20 / +1.04%
             |             
            
                19.30
             |           
            
                19.50
             |               
            
                19.30
             |                           
            
                19.50
             | 
            
                19.40
             |                     
            
                16.72
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.20
             |           
            
                19.30
             |               
            
                19.20
             |                           
            
                19.30
             | 
            
                19.26
             |                     
            
                16.55
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.20
             |           
            
                19.30
             |               
            
                19.20
             |                           
            
                19.30
             | 
            
                19.24
             |                     
            
                16.55
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2018
             | 
            
                +0.80 / +4.32%
             |             
            
                19.40
             |           
            
                19.40
             |               
            
                19.10
             |                           
            
                19.30
             | 
            
                19.18
             |                     
            
                16.55
             |                                 
            
                1,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2018
             | 
            
                +0.80 / +4.52%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                15.86
             |                                 
            
                12,310
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2018
             | 
            
                -1.80 / -9.23%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                18.27
             |                     
            
                15.18
             |                                 
            
                1,384
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.40
             |           
            
                19.50
             |               
            
                18.70
             |                           
            
                19.50
             | 
            
                19.24
             |                     
            
                16.72
             |                                 
            
                8,304
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                18.50
             |           
            
                19.50
             |               
            
                18.50
             |                           
            
                19.50
             | 
            
                19.47
             |                     
            
                16.72
             |                                 
            
                5,660
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2018
             | 
            
                +0.10 / +0.52%
             |             
            
                18.20
             |           
            
                19.50
             |               
            
                18.20
             |                           
            
                19.50
             | 
            
                19.20
             |                     
            
                16.72
             |                                 
            
                3,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2018
             | 
            
                +0.90 / +4.86%
             |             
            
                17.00
             |           
            
                19.40
             |               
            
                17.00
             |                           
            
                19.40
             | 
            
                18.64
             |                     
            
                16.64
             |                                 
            
                5,139
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                15.86
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                15.86
             |                                 
            
                85,908
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2018
             | 
            
                -0.50 / -2.63%
             |             
            
                19.40
             |           
            
                19.40
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.96
             |                     
            
                15.86
             |                                 
            
                2,142
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2018
             | 
            
                -0.40 / -2.06%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                19.00
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                16.29
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2018
             | 
            
                +1.70 / +9.60%
             |             
            
                19.00
             |           
            
                19.40
             |               
            
                19.00
             |                           
            
                19.40
             | 
            
                19.16
             |                     
            
                16.64
             |                                 
            
                5,024
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2018
             | 
            
                -1.80 / -9.23%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.88
             |                     
            
                15.18
             |                                 
            
                3,045
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2018
             | 
            
                +0.30 / +1.56%
             |             
            
                19.00
             |           
            
                19.50
             |               
            
                19.00
             |                           
            
                19.50
             | 
            
                19.31
             |                     
            
                16.72
             |                                 
            
                72,448
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.20
             |           
            
                19.20
             |               
            
                19.20
             |                           
            
                19.20
             | 
            
                19.20
             |                     
            
                16.46
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.20
             |           
            
                19.20
             |               
            
                19.20
             |                           
            
                19.20
             | 
            
                19.20
             |                     
            
                16.46
             |                                 
            
                60,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2018
             | 
            
                -0.30 / -1.54%
             |             
            
                19.70
             |           
            
                20.20
             |               
            
                18.20
             |                           
            
                19.20
             | 
            
                19.62
             |                     
            
                16.46
             |                                 
            
                6,912
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                55,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2018
             | 
            
                0.00 / 0.00%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2018
             | 
            
                -0.70 / -3.47%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                16.72
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2018
             | 
            
                +1.20 / +6.32%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.20
             |                           
            
                20.20
             | 
            
                20.20
             |                     
            
                17.32
             |                                 
            
                55,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2018
             | 
            
                -1.90 / -9.09%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                19.00
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                16.29
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                20.90
             |           
            
                20.90
             |               
            
                20.90
             |                           
            
                20.90
             | 
            
                20.90
             |                     
            
                17.92
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |