| 
                 
                    Closing price on 2/13/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.60 | 
                 
                
                    | High | 
                    4.60 | 
                 
                
                    | Low | 
                    4.60 | 
                     
                
                    | Volume | 
                    0 | 
                                 
                
                    | Split-adjusted Price | 
                    4.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.90
             |                                 
            
                15
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2018
             | 
            
                +0.30 / +6.52%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.90
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2018
             | 
            
                -0.40 / -8.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2018
             | 
            
                +0.40 / +8.70%
             |             
            
                4.70
             |           
            
                5.00
             |               
            
                4.70
             |                           
            
                5.00
             | 
            
                4.98
             |                     
            
                5.00
             |                                 
            
                4,375
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2018
             | 
            
                +0.40 / +9.52%
             |             
            
                4.30
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.60
             | 
            
                4.38
             |                     
            
                4.60
             |                                 
            
                10,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2018
             | 
            
                +0.20 / +5.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                4.20
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2018
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.99
             |                     
            
                3.90
             |                                 
            
                12,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2018
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                5,605
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                1,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.60
             |                           
            
                4.00
             | 
            
                3.83
             |                     
            
                4.00
             |                                 
            
                7,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.03
             |                     
            
                4.00
             |                                 
            
                715
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                4.10
             |                                 
            
                7,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                4.10
             |               
            
                3.80
             |                           
            
                4.10
             | 
            
                3.84
             |                     
            
                4.10
             |                                 
            
                885
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                4.10
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2018
             | 
            
                +0.10 / +2.50%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.80
             |                           
            
                4.10
             | 
            
                3.87
             |                     
            
                4.10
             |                                 
            
                1,850
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                45
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2018
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.95
             |                     
            
                4.00
             |                                 
            
                10,065
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2018
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2018
             | 
            
                -0.20 / -4.76%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.03
             |                     
            
                4.00
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |