| 
                 
                    Closing price on 3/25/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    18.95 | 
                 
                
                    | High | 
                    19.90 | 
                 
                
                    | Low | 
                    18.70 | 
                     
                
                    | Volume | 
                    529,910 | 
                                 
                
                    | Split-adjusted Price | 
                    16.51 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NBB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/25/2020
             | 
            
                +1.30 / +6.99%
             |             
            
                18.95
             |           
            
                19.90
             |               
            
                18.70
             |                           
            
                19.90
             | 
            
                19.81
             |                     
            
                16.51
             |                                 
            
                529,910
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2020
             | 
            
                +0.50 / +2.76%
             |             
            
                18.75
             |           
            
                18.80
             |               
            
                18.20
             |                           
            
                18.60
             | 
            
                18.57
             |                     
            
                15.43
             |                                 
            
                46,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2020
             | 
            
                -1.35 / -6.94%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                18.10
             |                           
            
                18.10
             | 
            
                18.34
             |                     
            
                15.02
             |                                 
            
                213,690
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2020
             | 
            
                -0.05 / -0.26%
             |             
            
                19.65
             |           
            
                19.70
             |               
            
                19.40
             |                           
            
                19.45
             | 
            
                19.56
             |                     
            
                16.14
             |                                 
            
                100,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2020
             | 
            
                -0.25 / -1.27%
             |             
            
                19.75
             |           
            
                19.75
             |               
            
                19.35
             |                           
            
                19.50
             | 
            
                19.59
             |                     
            
                16.18
             |                                 
            
                46,250
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2020
             | 
            
                -0.10 / -0.50%
             |             
            
                19.20
             |           
            
                19.85
             |               
            
                19.20
             |                           
            
                19.75
             | 
            
                19.70
             |                     
            
                16.39
             |                                 
            
                119,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2020
             | 
            
                -0.20 / -1.00%
             |             
            
                20.05
             |           
            
                20.05
             |               
            
                19.30
             |                           
            
                19.85
             | 
            
                19.72
             |                     
            
                16.47
             |                                 
            
                84,270
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2020
             | 
            
                +0.25 / +1.26%
             |             
            
                19.80
             |           
            
                20.10
             |               
            
                19.50
             |                           
            
                20.05
             | 
            
                19.96
             |                     
            
                16.63
             |                                 
            
                113,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2020
             | 
            
                +1.05 / +5.60%
             |             
            
                18.65
             |           
            
                19.95
             |               
            
                18.00
             |                           
            
                19.80
             | 
            
                19.17
             |                     
            
                16.43
             |                                 
            
                386,140
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2020
             | 
            
                -0.25 / -1.32%
             |             
            
                17.70
             |           
            
                18.85
             |               
            
                17.70
             |                           
            
                18.75
             | 
            
                18.51
             |                     
            
                15.56
             |                                 
            
                58,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2020
             | 
            
                0.00 / 0.00%
             |             
            
                19.40
             |           
            
                19.40
             |               
            
                18.60
             |                           
            
                19.00
             | 
            
                18.95
             |                     
            
                15.76
             |                                 
            
                70,190
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2020
             | 
            
                +0.10 / +0.53%
             |             
            
                17.70
             |           
            
                19.15
             |               
            
                17.70
             |                           
            
                19.00
             | 
            
                18.89
             |                     
            
                15.76
             |                                 
            
                92,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2020
             | 
            
                -0.45 / -2.33%
             |             
            
                18.60
             |           
            
                19.25
             |               
            
                18.00
             |                           
            
                18.90
             | 
            
                18.34
             |                     
            
                15.68
             |                                 
            
                65,320
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2020
             | 
            
                +0.10 / +0.52%
             |             
            
                19.95
             |           
            
                19.95
             |               
            
                18.90
             |                           
            
                19.35
             | 
            
                19.07
             |                     
            
                16.05
             |                                 
            
                20,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2020
             | 
            
                -0.25 / -1.28%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.00
             |                           
            
                19.25
             | 
            
                19.14
             |                     
            
                15.97
             |                                 
            
                16,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2020
             | 
            
                +0.20 / +1.04%
             |             
            
                18.85
             |           
            
                19.50
             |               
            
                18.25
             |                           
            
                19.50
             | 
            
                19.31
             |                     
            
                16.18
             |                                 
            
                729,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2020
             | 
            
                +0.35 / +1.85%
             |             
            
                18.95
             |           
            
                19.30
             |               
            
                18.85
             |                           
            
                19.30
             | 
            
                19.13
             |                     
            
                16.01
             |                                 
            
                12,130
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2020
             | 
            
                -0.25 / -1.30%
             |             
            
                19.80
             |           
            
                19.80
             |               
            
                18.95
             |                           
            
                18.95
             | 
            
                19.37
             |                     
            
                15.72
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2020
             | 
            
                0.00 / 0.00%
             |             
            
                18.90
             |           
            
                19.25
             |               
            
                18.90
             |                           
            
                19.20
             | 
            
                19.09
             |                     
            
                15.93
             |                                 
            
                204,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2020
             | 
            
                +0.20 / +1.05%
             |             
            
                19.25
             |           
            
                19.25
             |               
            
                18.20
             |                           
            
                19.20
             | 
            
                18.35
             |                     
            
                15.93
             |                                 
            
                462,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2020
             | 
            
                -0.25 / -1.30%
             |             
            
                19.25
             |           
            
                19.25
             |               
            
                19.00
             |                           
            
                19.00
             | 
            
                19.13
             |                     
            
                15.76
             |                                 
            
                16,380
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2020
             | 
            
                +0.05 / +0.26%
             |             
            
                19.00
             |           
            
                19.30
             |               
            
                18.80
             |                           
            
                19.25
             | 
            
                19.02
             |                     
            
                15.97
             |                                 
            
                2,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2020
             | 
            
                -0.10 / -0.52%
             |             
            
                19.30
             |           
            
                19.45
             |               
            
                19.05
             |                           
            
                19.20
             | 
            
                19.10
             |                     
            
                15.93
             |                                 
            
                2,670
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2020
             | 
            
                0.00 / 0.00%
             |             
            
                19.75
             |           
            
                19.75
             |               
            
                19.30
             |                           
            
                19.30
             | 
            
                19.31
             |                     
            
                16.01
             |                                 
            
                109,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2020
             | 
            
                -0.35 / -1.78%
             |             
            
                19.30
             |           
            
                19.70
             |               
            
                19.30
             |                           
            
                19.30
             | 
            
                19.40
             |                     
            
                16.01
             |                                 
            
                1,350
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2020
             | 
            
                +0.10 / +0.51%
             |             
            
                19.55
             |           
            
                19.85
             |               
            
                19.40
             |                           
            
                19.65
             | 
            
                19.46
             |                     
            
                16.30
             |                                 
            
                241,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2020
             | 
            
                +0.20 / +1.03%
             |             
            
                19.40
             |           
            
                19.60
             |               
            
                19.40
             |                           
            
                19.55
             | 
            
                19.50
             |                     
            
                16.22
             |                                 
            
                1,278,720
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2020
             | 
            
                +0.05 / +0.26%
             |             
            
                19.50
             |           
            
                19.55
             |               
            
                19.30
             |                           
            
                19.35
             | 
            
                19.36
             |                     
            
                16.05
             |                                 
            
                11,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2020
             | 
            
                0.00 / 0.00%
             |             
            
                19.30
             |           
            
                19.50
             |               
            
                19.30
             |                           
            
                19.30
             | 
            
                19.35
             |                     
            
                16.01
             |                                 
            
                177,480
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2020
             | 
            
                +0.20 / +1.05%
             |             
            
                19.20
             |           
            
                19.55
             |               
            
                19.20
             |                           
            
                19.30
             | 
            
                19.31
             |                     
            
                16.01
             |                                 
            
                850,130
             |  
            
                 
             |                                                              
             
    
         
    
    
 |