| 
                 
                    Closing price on 12/21/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.50 | 
                 
                
                    | High | 
                    11.90 | 
                 
                
                    | Low | 
                    11.50 | 
                     
                
                    | Volume | 
                    79,290 | 
                                 
                
                    | Split-adjusted Price | 
                    6.26 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/21/2017
             | 
            
                0.00 / 0.00%
             |             
            
                11.50
             |           
            
                11.90
             |               
            
                11.50
             |                           
            
                11.65
             | 
            
                11.79
             |                     
            
                6.26
             |                                 
            
                79,290
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2017
             | 
            
                -0.35 / -2.92%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.35
             |                           
            
                11.65
             | 
            
                11.78
             |                     
            
                6.26
             |                                 
            
                102,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2017
             | 
            
                -0.20 / -1.64%
             |             
            
                11.90
             |           
            
                12.30
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.08
             |                     
            
                6.45
             |                                 
            
                84,020
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2017
             | 
            
                +0.05 / +0.41%
             |             
            
                12.00
             |           
            
                12.40
             |               
            
                11.80
             |                           
            
                12.20
             | 
            
                12.17
             |                     
            
                6.56
             |                                 
            
                114,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2017
             | 
            
                +0.15 / +1.25%
             |             
            
                12.00
             |           
            
                12.30
             |               
            
                11.80
             |                           
            
                12.15
             | 
            
                12.10
             |                     
            
                6.53
             |                                 
            
                55,140
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2017
             | 
            
                +0.20 / +1.69%
             |             
            
                11.80
             |           
            
                12.05
             |               
            
                11.80
             |                           
            
                12.00
             | 
            
                11.91
             |                     
            
                6.45
             |                                 
            
                51,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2017
             | 
            
                +0.50 / +4.42%
             |             
            
                11.40
             |           
            
                11.80
             |               
            
                11.40
             |                           
            
                11.80
             | 
            
                11.76
             |                     
            
                6.34
             |                                 
            
                28,920
             |            
            
                 
             |                                       
         
    
        
            | 
                12/12/2017
             | 
            
                -0.30 / -2.59%
             |             
            
                11.60
             |           
            
                11.90
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.63
             |                     
            
                6.07
             |                                 
            
                129,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/11/2017
             | 
            
                -0.40 / -3.33%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.73
             |                     
            
                6.23
             |                                 
            
                96,160
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2017
             | 
            
                -0.20 / -1.64%
             |             
            
                12.00
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                11.90
             |                     
            
                6.45
             |                                 
            
                70,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2017
             | 
            
                -0.20 / -1.61%
             |             
            
                12.40
             |           
            
                12.70
             |               
            
                11.90
             |                           
            
                12.20
             | 
            
                12.15
             |                     
            
                6.56
             |                                 
            
                80,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2017
             | 
            
                -0.65 / -4.98%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.15
             |                           
            
                12.40
             | 
            
                12.27
             |                     
            
                6.66
             |                                 
            
                250,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/5/2017
             | 
            
                -0.95 / -6.79%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.05
             |                           
            
                13.05
             | 
            
                13.23
             |                     
            
                7.01
             |                                 
            
                116,190
             |            
            
                 
             |                                       
         
    
        
            | 
                12/4/2017
             | 
            
                +0.30 / +2.19%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                13.50
             |                           
            
                14.00
             | 
            
                13.66
             |                     
            
                7.52
             |                                 
            
                62,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2017
             | 
            
                +0.10 / +0.74%
             |             
            
                13.60
             |           
            
                13.70
             |               
            
                13.50
             |                           
            
                13.70
             | 
            
                13.57
             |                     
            
                7.36
             |                                 
            
                102,420
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2017
             | 
            
                +0.60 / +4.62%
             |             
            
                13.10
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.60
             | 
            
                13.27
             |                     
            
                7.31
             |                                 
            
                107,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2017
             | 
            
                +0.10 / +0.78%
             |             
            
                13.20
             |           
            
                13.50
             |               
            
                12.90
             |                           
            
                13.00
             | 
            
                13.09
             |                     
            
                6.99
             |                                 
            
                35,740
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2017
             | 
            
                -0.75 / -5.49%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                13.29
             |                     
            
                6.93
             |                                 
            
                25,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                13.65
             |           
            
                14.30
             |               
            
                13.65
             |                           
            
                13.65
             | 
            
                13.89
             |                     
            
                7.34
             |                                 
            
                22,990
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2017
             | 
            
                +0.40 / +3.02%
             |             
            
                13.60
             |           
            
                13.65
             |               
            
                13.25
             |                           
            
                13.65
             | 
            
                13.55
             |                     
            
                7.34
             |                                 
            
                3,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2017
             | 
            
                +0.85 / +6.85%
             |             
            
                12.50
             |           
            
                13.25
             |               
            
                12.50
             |                           
            
                13.25
             | 
            
                13.08
             |                     
            
                7.12
             |                                 
            
                109,370
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2017
             | 
            
                +0.20 / +1.64%
             |             
            
                12.20
             |           
            
                12.50
             |               
            
                12.10
             |                           
            
                12.40
             | 
            
                12.17
             |                     
            
                6.66
             |                                 
            
                3,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/21/2017
             | 
            
                -0.50 / -3.94%
             |             
            
                12.65
             |           
            
                12.70
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.44
             |                     
            
                6.56
             |                                 
            
                10,530
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.30
             |                           
            
                12.70
             | 
            
                12.55
             |                     
            
                6.82
             |                                 
            
                10,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2017
             | 
            
                +0.10 / +0.79%
             |             
            
                12.70
             |           
            
                12.75
             |               
            
                12.10
             |                           
            
                12.70
             | 
            
                12.37
             |                     
            
                6.82
             |                                 
            
                16,570
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2017
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                12.90
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.68
             |                     
            
                6.77
             |                                 
            
                4,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/15/2017
             | 
            
                +0.10 / +0.80%
             |             
            
                12.50
             |           
            
                12.80
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                6.77
             |                                 
            
                2,330
             |            
            
                 
             |                                       
         
    
        
            | 
                11/14/2017
             | 
            
                -0.20 / -1.57%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.15
             |                           
            
                12.50
             | 
            
                12.51
             |                     
            
                6.72
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2017
             | 
            
                -0.05 / -0.39%
             |             
            
                12.30
             |           
            
                12.70
             |               
            
                12.30
             |                           
            
                12.70
             | 
            
                12.37
             |                     
            
                6.82
             |                                 
            
                4,930
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2017
             | 
            
                0.00 / 0.00%
             |             
            
                12.75
             |           
            
                12.75
             |               
            
                12.75
             |                           
            
                12.75
             | 
            
                12.75
             |                     
            
                6.85
             |                                 
            
                4,270
             |  
            
                 
             |                                                              
             
    
         
    
    
 |