| 
                 
                    Closing price on 2/25/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.20 | 
                 
                
                    | High | 
                    10.30 | 
                 
                
                    | Low | 
                    10.10 | 
                     
                
                    | Volume | 
                    38,630 | 
                                 
                
                    | Split-adjusted Price | 
                    5.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2019
             | 
            
                +0.10 / +0.99%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                10.00
             |                           
            
                10.20
             | 
            
                10.20
             |                     
            
                5.65
             |                                 
            
                17,060
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2019
             | 
            
                +0.40 / +4.12%
             |             
            
                9.50
             |           
            
                10.20
             |               
            
                9.50
             |                           
            
                10.10
             | 
            
                9.99
             |                     
            
                5.60
             |                                 
            
                67,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2019
             | 
            
                -0.10 / -1.02%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.70
             |                           
            
                9.70
             | 
            
                9.78
             |                     
            
                5.37
             |                                 
            
                8,080
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2019
             | 
            
                +0.17 / +1.77%
             |             
            
                9.63
             |           
            
                10.00
             |               
            
                9.61
             |                           
            
                9.80
             | 
            
                9.72
             |                     
            
                5.43
             |                                 
            
                20,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2019
             | 
            
                +0.23 / +2.45%
             |             
            
                9.40
             |           
            
                9.70
             |               
            
                9.40
             |                           
            
                9.63
             | 
            
                9.51
             |                     
            
                5.34
             |                                 
            
                14,830
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2019
             | 
            
                +0.10 / +1.08%
             |             
            
                9.40
             |           
            
                9.60
             |               
            
                9.40
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                5.21
             |                                 
            
                8,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.32
             |           
            
                9.40
             |               
            
                8.98
             |                           
            
                9.30
             | 
            
                9.25
             |                     
            
                5.15
             |                                 
            
                20,750
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2019
             | 
            
                +0.09 / +0.98%
             |             
            
                9.40
             |           
            
                9.40
             |               
            
                9.20
             |                           
            
                9.30
             | 
            
                9.22
             |                     
            
                5.15
             |                                 
            
                21,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2019
             | 
            
                +0.02 / +0.22%
             |             
            
                9.40
             |           
            
                9.40
             |               
            
                9.21
             |                           
            
                9.21
             | 
            
                9.31
             |                     
            
                5.10
             |                                 
            
                3,180
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.40
             |           
            
                9.40
             |               
            
                9.19
             |                           
            
                9.19
             | 
            
                9.30
             |                     
            
                5.09
             |                                 
            
                5,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2019
             | 
            
                +0.09 / +0.99%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                9.10
             |                           
            
                9.19
             | 
            
                9.16
             |                     
            
                5.09
             |                                 
            
                2,510
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.29
             |           
            
                9.29
             |               
            
                9.00
             |                           
            
                9.10
             | 
            
                9.02
             |                     
            
                5.04
             |                                 
            
                6,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.15
             |           
            
                9.40
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.16
             |                     
            
                5.04
             |                                 
            
                5,460
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2019
             | 
            
                -0.20 / -2.15%
             |             
            
                9.40
             |           
            
                9.40
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.25
             |                     
            
                5.04
             |                                 
            
                1,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2019
             | 
            
                +0.20 / +2.20%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                9.10
             |                           
            
                9.30
             | 
            
                9.12
             |                     
            
                5.15
             |                                 
            
                10,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2019
             | 
            
                -0.10 / -1.09%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                9.00
             |                           
            
                9.10
             | 
            
                9.08
             |                     
            
                5.04
             |                                 
            
                34,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                8.90
             |                           
            
                9.20
             | 
            
                9.01
             |                     
            
                5.10
             |                                 
            
                22,970
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.02
             |           
            
                9.50
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.03
             |                     
            
                5.10
             |                                 
            
                37,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2019
             | 
            
                -0.50 / -5.15%
             |             
            
                9.51
             |           
            
                9.79
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.30
             |                     
            
                5.10
             |                                 
            
                21,510
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.60
             |                           
            
                9.70
             | 
            
                9.73
             |                     
            
                5.37
             |                                 
            
                26,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2019
             | 
            
                -0.20 / -2.02%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.66
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                5.37
             |                                 
            
                11,030
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2019
             | 
            
                +0.20 / +2.06%
             |             
            
                9.80
             |           
            
                9.90
             |               
            
                9.70
             |                           
            
                9.90
             | 
            
                9.79
             |                     
            
                5.48
             |                                 
            
                21,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2019
             | 
            
                +0.05 / +0.52%
             |             
            
                9.70
             |           
            
                9.90
             |               
            
                9.65
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                5.37
             |                                 
            
                29,890
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2019
             | 
            
                -0.35 / -3.50%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.65
             |                           
            
                9.65
             | 
            
                9.77
             |                     
            
                5.35
             |                                 
            
                3,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2019
             | 
            
                +0.15 / +1.52%
             |             
            
                9.85
             |           
            
                10.00
             |               
            
                9.85
             |                           
            
                10.00
             | 
            
                9.93
             |                     
            
                5.54
             |                                 
            
                670
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2019
             | 
            
                -0.15 / -1.50%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.85
             |                           
            
                9.85
             | 
            
                9.93
             |                     
            
                5.46
             |                                 
            
                1,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                9.96
             |                           
            
                10.00
             | 
            
                9.98
             |                     
            
                5.54
             |                                 
            
                19,930
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.95
             |                           
            
                10.00
             | 
            
                9.97
             |                     
            
                5.54
             |                                 
            
                139,630
             |  
            
                 
             |                                                              
             
    
         
    
    
 |