| 
                 
                    Closing price on 3/29/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.00 | 
                 
                
                    | High | 
                    4.00 | 
                 
                
                    | Low | 
                    4.00 | 
                     
                
                    | Volume | 
                    690 | 
                                 
                
                    | Split-adjusted Price | 
                    4.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/29/2018
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                690
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2018
             | 
            
                +0.20 / +5.13%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.05
             |                     
            
                4.10
             |                                 
            
                405
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2018
             | 
            
                -0.20 / -4.88%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.91
             |                     
            
                3.90
             |                                 
            
                690
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                4.10
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.70
             |                           
            
                4.10
             | 
            
                3.96
             |                     
            
                4.10
             |                                 
            
                7,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2018
             | 
            
                -0.40 / -8.89%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.11
             |                     
            
                4.10
             |                                 
            
                1,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.50
             |                                 
            
                20
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2018
             | 
            
                +0.30 / +7.14%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.50
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2018
             | 
            
                -0.20 / -4.55%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                4.20
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.40
             |                                 
            
                70
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.40
             |                                 
            
                30
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2018
             | 
            
                -0.30 / -6.38%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.49
             |                     
            
                4.40
             |                                 
            
                320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2018
             | 
            
                +0.40 / +9.30%
             |             
            
                4.00
             |           
            
                4.70
             |               
            
                4.00
             |                           
            
                4.70
             | 
            
                4.62
             |                     
            
                4.70
             |                                 
            
                15,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                55
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.19
             |                     
            
                4.30
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                4,480
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2018
             | 
            
                -0.30 / -6.52%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2018
             | 
            
                -0.20 / -4.17%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                1,150
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2018
             | 
            
                +0.10 / +2.13%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.72
             |                     
            
                4.80
             |                                 
            
                1,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2018
             | 
            
                +0.20 / +4.44%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.20
             |                           
            
                4.70
             | 
            
                4.37
             |                     
            
                4.70
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.70
             |                     
            
                4.50
             |                                 
            
                1,315
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.50
             |                                 
            
                110
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2018
             | 
            
                -0.10 / -2.17%
             |             
            
                4.30
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.50
             | 
            
                4.43
             |                     
            
                4.50
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2018
             | 
            
                -0.30 / -6.12%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.61
             |                     
            
                4.60
             |                                 
            
                2,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.90
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |