| 
                 
                    Closing price on 9/5/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.13 | 
                 
                
                    | High | 
                    7.13 | 
                 
                
                    | Low | 
                    7.00 | 
                     
                
                    | Volume | 
                    2,560 | 
                                 
                
                    | Split-adjusted Price | 
                    4.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.13
             |           
            
                7.13
             |               
            
                7.00
             |                           
            
                7.08
             | 
            
                7.03
             |                     
            
                4.70
             |                                 
            
                2,560
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2019
             | 
            
                +0.13 / +1.87%
             |             
            
                6.80
             |           
            
                7.10
             |               
            
                6.80
             |                           
            
                7.08
             | 
            
                6.84
             |                     
            
                4.70
             |                                 
            
                13,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2019
             | 
            
                -0.16 / -2.25%
             |             
            
                7.11
             |           
            
                7.11
             |               
            
                6.95
             |                           
            
                6.95
             | 
            
                7.01
             |                     
            
                4.61
             |                                 
            
                2,710
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2019
             | 
            
                +0.01 / +0.14%
             |             
            
                7.14
             |           
            
                7.14
             |               
            
                7.10
             |                           
            
                7.11
             | 
            
                7.12
             |                     
            
                4.72
             |                                 
            
                2,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.08
             |                     
            
                4.71
             |                                 
            
                2,860
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2019
             | 
            
                -0.03 / -0.42%
             |             
            
                7.00
             |           
            
                7.12
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.02
             |                     
            
                4.71
             |                                 
            
                17,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2019
             | 
            
                -0.01 / -0.14%
             |             
            
                7.14
             |           
            
                7.14
             |               
            
                7.00
             |                           
            
                7.13
             | 
            
                7.02
             |                     
            
                4.73
             |                                 
            
                26,920
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.14
             |               
            
                7.00
             |                           
            
                7.14
             | 
            
                7.07
             |                     
            
                4.74
             |                                 
            
                52,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2019
             | 
            
                -0.01 / -0.14%
             |             
            
                7.15
             |           
            
                7.15
             |               
            
                7.00
             |                           
            
                7.14
             | 
            
                7.06
             |                     
            
                4.74
             |                                 
            
                29,310
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2019
             | 
            
                -0.05 / -0.69%
             |             
            
                7.10
             |           
            
                7.20
             |               
            
                7.10
             |                           
            
                7.15
             | 
            
                7.14
             |                     
            
                4.75
             |                                 
            
                6,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2019
             | 
            
                -0.10 / -1.37%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.13
             |                     
            
                4.78
             |                                 
            
                26,360
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                4.85
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.20
             |                           
            
                7.30
             | 
            
                7.24
             |                     
            
                4.85
             |                                 
            
                8,430
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2019
             | 
            
                +0.10 / +1.39%
             |             
            
                7.20
             |           
            
                7.40
             |               
            
                7.20
             |                           
            
                7.30
             | 
            
                7.29
             |                     
            
                4.85
             |                                 
            
                10,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2019
             | 
            
                -0.20 / -2.70%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.22
             |                     
            
                4.78
             |                                 
            
                2,630
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.40
             |           
            
                7.50
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.43
             |                     
            
                4.91
             |                                 
            
                5,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2019
             | 
            
                -0.10 / -1.33%
             |             
            
                6.99
             |           
            
                7.45
             |               
            
                6.99
             |                           
            
                7.40
             | 
            
                7.42
             |                     
            
                4.91
             |                                 
            
                3,640
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.55
             |                     
            
                4.98
             |                                 
            
                440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2019
             | 
            
                -0.10 / -1.32%
             |             
            
                7.30
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.50
             | 
            
                7.21
             |                     
            
                4.98
             |                                 
            
                113,360
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2019
             | 
            
                -0.10 / -1.30%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.66
             |                     
            
                5.04
             |                                 
            
                8,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2019
             | 
            
                +0.10 / +1.32%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                5.11
             |                                 
            
                120
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2019
             | 
            
                +0.10 / +1.33%
             |             
            
                7.50
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.60
             | 
            
                7.39
             |                     
            
                5.04
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2019
             | 
            
                -0.10 / -1.32%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.54
             |                     
            
                4.98
             |                                 
            
                22,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.65
             |                     
            
                5.04
             |                                 
            
                1,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2019
             | 
            
                -0.10 / -1.30%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.65
             |                     
            
                5.04
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2019
             | 
            
                +0.10 / +1.32%
             |             
            
                7.60
             |           
            
                7.80
             |               
            
                7.60
             |                           
            
                7.70
             | 
            
                7.68
             |                     
            
                5.11
             |                                 
            
                1,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.85
             |           
            
                7.85
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.74
             |                     
            
                5.04
             |                                 
            
                3,490
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2019
             | 
            
                -0.30 / -3.80%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.70
             |                     
            
                5.04
             |                                 
            
                6,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2019
             | 
            
                +0.10 / +1.28%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.24
             |                                 
            
                11,510
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.85
             |                     
            
                5.18
             |                                 
            
                3,370
             |  
            
                 
             |                                                              
             
    
         
    
    
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