| 
                 
                    Closing price on 4/4/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.70 | 
                 
                
                    | High | 
                    9.90 | 
                 
                
                    | Low | 
                    9.70 | 
                     
                
                    | Volume | 
                    220 | 
                                 
                
                    | Split-adjusted Price | 
                    5.48 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.70
             |           
            
                9.90
             |               
            
                9.70
             |                           
            
                9.90
             | 
            
                9.80
             |                     
            
                5.48
             |                                 
            
                220
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2019
             | 
            
                -0.10 / -1.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.70
             |                           
            
                9.90
             | 
            
                9.77
             |                     
            
                5.48
             |                                 
            
                15,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                5.54
             |                                 
            
                1,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2019
             | 
            
                +0.10 / +1.01%
             |             
            
                9.90
             |           
            
                10.00
             |               
            
                9.90
             |                           
            
                10.00
             | 
            
                9.95
             |                     
            
                5.54
             |                                 
            
                3,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.80
             |                           
            
                9.90
             | 
            
                9.83
             |                     
            
                5.48
             |                                 
            
                5,190
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2019
             | 
            
                -0.05 / -0.50%
             |             
            
                9.95
             |           
            
                10.10
             |               
            
                9.80
             |                           
            
                9.90
             | 
            
                10.04
             |                     
            
                5.48
             |                                 
            
                27,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2019
             | 
            
                -0.05 / -0.50%
             |             
            
                10.00
             |           
            
                10.05
             |               
            
                9.90
             |                           
            
                9.95
             | 
            
                9.97
             |                     
            
                5.51
             |                                 
            
                3,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                10.00
             |               
            
                9.90
             |                           
            
                10.00
             | 
            
                9.95
             |                     
            
                5.54
             |                                 
            
                42,815
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2019
             | 
            
                +0.10 / +1.01%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.05
             |                     
            
                5.54
             |                                 
            
                1,440
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2019
             | 
            
                -0.20 / -1.98%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                10.04
             |                     
            
                5.48
             |                                 
            
                2,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2019
             | 
            
                +0.10 / +1.00%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                10.00
             |                           
            
                10.10
             | 
            
                10.02
             |                     
            
                5.60
             |                                 
            
                13,570
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.95
             |                           
            
                10.00
             | 
            
                9.95
             |                     
            
                5.54
             |                                 
            
                10,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.05
             |           
            
                10.05
             |               
            
                9.95
             |                           
            
                10.00
             | 
            
                9.97
             |                     
            
                5.54
             |                                 
            
                21,760
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2019
             | 
            
                -0.30 / -2.91%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.08
             |                     
            
                5.54
             |                                 
            
                73,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2019
             | 
            
                -0.10 / -0.96%
             |             
            
                10.40
             |           
            
                10.40
             |               
            
                10.15
             |                           
            
                10.30
             | 
            
                10.30
             |                     
            
                5.71
             |                                 
            
                6,310
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.40
             |           
            
                10.40
             |               
            
                10.20
             |                           
            
                10.40
             | 
            
                10.29
             |                     
            
                5.76
             |                                 
            
                1,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2019
             | 
            
                +0.30 / +2.97%
             |             
            
                10.20
             |           
            
                10.40
             |               
            
                10.05
             |                           
            
                10.40
             | 
            
                10.21
             |                     
            
                5.76
             |                                 
            
                54,650
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2019
             | 
            
                -0.10 / -0.98%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                10.00
             |                           
            
                10.10
             | 
            
                10.01
             |                     
            
                5.60
             |                                 
            
                13,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2019
             | 
            
                -0.10 / -0.97%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.20
             |                           
            
                10.20
             | 
            
                10.25
             |                     
            
                5.65
             |                                 
            
                70
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.10
             |                           
            
                10.30
             | 
            
                10.18
             |                     
            
                5.71
             |                                 
            
                7,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2019
             | 
            
                +0.10 / +0.98%
             |             
            
                10.20
             |           
            
                10.30
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.26
             |                     
            
                5.71
             |                                 
            
                16,570
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2019
             | 
            
                +0.10 / +0.99%
             |             
            
                10.10
             |           
            
                10.20
             |               
            
                10.10
             |                           
            
                10.20
             | 
            
                10.13
             |                     
            
                5.65
             |                                 
            
                3,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2019
             | 
            
                -0.20 / -1.94%
             |             
            
                10.10
             |           
            
                10.20
             |               
            
                10.00
             |                           
            
                10.10
             | 
            
                10.05
             |                     
            
                5.60
             |                                 
            
                10,550
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2019
             | 
            
                +0.10 / +0.98%
             |             
            
                10.20
             |           
            
                10.30
             |               
            
                10.10
             |                           
            
                10.30
             | 
            
                10.23
             |                     
            
                5.71
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                10.10
             |                           
            
                10.20
             | 
            
                10.15
             |                     
            
                5.65
             |                                 
            
                5,320
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.20
             |               
            
                10.00
             |                           
            
                10.20
             | 
            
                10.08
             |                     
            
                5.65
             |                                 
            
                28,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.10
             |                           
            
                10.20
             | 
            
                10.13
             |                     
            
                5.65
             |                                 
            
                24,970
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2019
             | 
            
                +0.10 / +0.99%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.10
             |                           
            
                10.20
             | 
            
                10.23
             |                     
            
                5.65
             |                                 
            
                40,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2019
             | 
            
                -0.10 / -0.98%
             |             
            
                10.20
             |           
            
                10.30
             |               
            
                10.10
             |                           
            
                10.10
             | 
            
                10.17
             |                     
            
                5.60
             |                                 
            
                38,630
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.20
             |           
            
                10.30
             |               
            
                10.15
             |                           
            
                10.20
             | 
            
                10.22
             |                     
            
                5.65
             |                                 
            
                10,960
             |  
            
                 
             |                                                              
             
    
         
    
    
 |