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                    Closing price on 3/18/2021
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        |           
                
                    | Open | 26.30 |  
                    | High | 26.90 |  
                    | Low | 26.30 |  
                    | Volume | 3,600 |  
                    | Split-adjusted Price | 25.60 |  
                
             | 
 |  NBB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/18/2021 | +0.60 / +2.28% | 26.30 | 26.90 | 26.30 | 26.90 | 26.42 | 25.60 | 3,600 |   |  
            | 3/17/2021 | +0.35 / +1.35% | 25.95 | 26.30 | 25.95 | 26.30 | 26.21 | 25.03 | 4,100 |   |  			
            | 3/16/2021 | -0.05 / -0.19% | 25.50 | 25.95 | 25.40 | 25.95 | 25.51 | 24.70 | 10,600 |   |  
            | 3/15/2021 | -0.30 / -1.14% | 26.00 | 26.05 | 25.60 | 26.00 | 25.84 | 24.74 | 3,200 |   |  			
            | 3/12/2021 | 0.00 / 0.00% | 26.30 | 26.30 | 26.30 | 26.30 | 26.30 | 25.03 | 0 |   |  
            | 3/11/2021 | -0.20 / -0.75% | 25.50 | 26.30 | 25.00 | 26.30 | 25.21 | 25.03 | 2,100 |   |  			
            | 3/10/2021 | 0.00 / 0.00% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 25.22 | 0 |   |  
            | 3/9/2021 | 0.00 / 0.00% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 25.22 | 0 |   |  			
            | 3/8/2021 | -0.40 / -1.49% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 25.22 | 2,500 |   |  
            | 3/5/2021 | 0.00 / 0.00% | 25.20 | 26.90 | 25.10 | 26.90 | 25.38 | 25.60 | 10,300 |   |  			
            | 3/4/2021 | 0.00 / 0.00% | 26.90 | 26.90 | 25.45 | 26.90 | 26.42 | 25.60 | 900 |   |  
            | 3/3/2021 | 0.00 / 0.00% | 26.90 | 26.90 | 26.90 | 26.90 | 26.90 | 25.60 | 100 |   |  			
            | 3/2/2021 | +0.40 / +1.51% | 26.90 | 26.90 | 26.90 | 26.90 | 26.90 | 25.60 | 100 |   |  
            | 3/1/2021 | +0.80 / +3.11% | 25.40 | 26.50 | 25.40 | 26.50 | 26.28 | 25.22 | 500 |   |  			
            | 2/26/2021 | -1.25 / -4.64% | 26.95 | 26.95 | 25.70 | 25.70 | 26.84 | 24.46 | 1,100 |   |  
            | 2/25/2021 | 0.00 / 0.00% | 26.95 | 26.95 | 26.95 | 26.95 | 26.95 | 25.65 | 0 |   |  			
            | 2/24/2021 | +0.05 / +0.19% | 25.60 | 26.95 | 25.10 | 26.95 | 25.49 | 25.65 | 700 |   |  
            | 2/23/2021 | -0.10 / -0.37% | 25.25 | 27.00 | 25.20 | 26.90 | 25.28 | 25.60 | 195,970 |   |  			
            | 2/22/2021 | +1.05 / +4.05% | 25.85 | 27.00 | 25.85 | 27.00 | 26.61 | 25.69 | 25,100 |   |  
            | 2/19/2021 | -0.05 / -0.19% | 25.90 | 25.95 | 25.90 | 25.95 | 25.93 | 24.70 | 300 |   |  			
            | 2/18/2021 | +0.05 / +0.19% | 25.90 | 26.00 | 25.90 | 26.00 | 25.93 | 24.74 | 1,500 |   |  
            | 2/17/2021 | +0.95 / +3.80% | 25.00 | 25.95 | 25.00 | 25.95 | 25.68 | 24.70 | 44,700 |   |  			
            | 2/9/2021 | 0.00 / 0.00% | 23.60 | 25.00 | 23.60 | 25.00 | 25.00 | 23.79 | 13,200 |   |  
            | 2/8/2021 | +1.50 / +6.38% | 23.60 | 25.00 | 23.40 | 25.00 | 24.09 | 23.79 | 5,500 |   |  			
            | 2/5/2021 | -1.10 / -4.47% | 23.20 | 24.60 | 23.20 | 23.50 | 23.73 | 22.36 | 1,800 |   |  
            | 2/4/2021 | +0.15 / +0.61% | 24.60 | 24.60 | 24.60 | 24.60 | 24.60 | 23.41 | 1,300 |   |  			
            | 2/3/2021 | +0.85 / +3.60% | 24.50 | 24.50 | 22.20 | 24.45 | 23.90 | 23.27 | 32,300 |   |  
            | 2/2/2021 | +1.30 / +5.83% | 23.00 | 23.60 | 23.00 | 23.60 | 23.51 | 22.46 | 8,100 |   |  			
            | 2/1/2021 | -1.60 / -6.69% | 23.90 | 23.90 | 22.30 | 22.30 | 22.34 | 21.22 | 8,800 |   |  
            | 1/29/2021 | +0.60 / +2.58% | 21.70 | 24.00 | 21.70 | 23.90 | 21.98 | 22.74 | 8,000 |   |  |