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                    Closing price on 1/8/2021
                 |  |  
    
        |           
                
                    | Open | 27.50 |  
                    | High | 27.80 |  
                    | Low | 25.70 |  
                    | Volume | 10,900 |  
                    | Split-adjusted Price | 24.51 |  
                
             | 
 |  NBB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/8/2021 | -1.75 / -6.36% | 27.50 | 27.80 | 25.70 | 25.75 | 26.72 | 24.51 | 10,900 |   |  
            | 1/7/2021 | +1.15 / +4.36% | 26.35 | 27.85 | 24.90 | 27.50 | 27.19 | 26.17 | 27,300 |   |  			
            | 1/6/2021 | +1.70 / +6.90% | 24.50 | 26.35 | 24.50 | 26.35 | 26.31 | 25.08 | 101,200 |   |  
            | 1/5/2021 | -0.85 / -3.33% | 23.90 | 24.70 | 23.90 | 24.65 | 24.65 | 23.46 | 1,300 |   |  			
            | 1/4/2021 | +1.25 / +5.15% | 23.00 | 25.60 | 23.00 | 25.50 | 24.19 | 24.27 | 2,800 |   |  
            | 12/31/2020 | +1.55 / +6.83% | 22.20 | 24.25 | 22.20 | 24.25 | 23.71 | 23.08 | 6,580 |   |  			
            | 12/30/2020 | +0.20 / +0.89% | 22.50 | 23.00 | 22.20 | 22.70 | 22.61 | 21.60 | 1,890 |   |  
            | 12/29/2020 | 0.00 / 0.00% | 22.50 | 22.80 | 22.00 | 22.50 | 22.55 | 21.41 | 6,290 |   |  			
            | 12/28/2020 | 0.00 / 0.00% | 22.95 | 23.00 | 22.05 | 22.50 | 22.30 | 21.41 | 300 |   |  
            | 12/25/2020 | -0.20 / -0.88% | 22.20 | 22.90 | 21.80 | 22.50 | 22.23 | 21.41 | 5,360 |   |  			
            | 12/24/2020 | +0.70 / +3.18% | 22.50 | 22.90 | 21.90 | 22.70 | 22.69 | 21.60 | 2,410 |   |  
            | 12/23/2020 | +0.10 / +0.46% | 22.50 | 22.50 | 22.00 | 22.00 | 22.37 | 20.94 | 1,210 |   |  			
            | 12/22/2020 | -0.10 / -0.45% | 21.80 | 22.15 | 21.80 | 21.90 | 22.00 | 20.84 | 4,650 |   |  
            | 12/21/2020 | -0.80 / -3.51% | 22.80 | 22.80 | 22.00 | 22.00 | 22.22 | 20.94 | 5,000 |   |  			
            | 12/18/2020 | -0.10 / -0.44% | 22.20 | 22.80 | 22.15 | 22.80 | 22.19 | 21.70 | 240 |   |  
            | 12/17/2020 | -0.25 / -1.08% | 22.50 | 22.90 | 22.30 | 22.90 | 22.38 | 21.79 | 1,780 |   |  			
            | 12/16/2020 | +1.15 / +5.23% | 21.70 | 23.50 | 21.70 | 23.15 | 22.48 | 22.03 | 40,180 |   |  
            | 12/15/2020 | -0.10 / -0.45% | 22.00 | 22.10 | 21.80 | 22.00 | 22.03 | 20.94 | 5,650 |   |  			
            | 12/14/2020 | +0.20 / +0.91% | 22.35 | 22.35 | 21.60 | 22.10 | 21.73 | 21.03 | 3,360 |   |  
            | 12/11/2020 | +0.40 / +1.86% | 22.15 | 22.15 | 21.90 | 21.90 | 21.95 | 20.84 | 1,070 |   |  			
            | 12/10/2020 | -0.40 / -1.83% | 21.60 | 21.80 | 21.50 | 21.50 | 21.54 | 20.46 | 3,560 |   |  
            | 12/9/2020 | 0.00 / 0.00% | 21.60 | 21.90 | 21.60 | 21.90 | 21.64 | 20.84 | 780 |   |  			
            | 12/8/2020 | +0.60 / +2.82% | 21.95 | 21.95 | 21.50 | 21.90 | 21.89 | 20.84 | 4,520 |   |  
            | 12/7/2020 | -0.45 / -2.07% | 21.75 | 21.95 | 21.05 | 21.30 | 21.58 | 20.27 | 14,180 |   |  			
            | 12/4/2020 | 0.00 / 0.00% | 22.05 | 22.10 | 21.75 | 21.75 | 21.95 | 20.70 | 600 |   |  
            | 12/3/2020 | +0.05 / +0.23% | 21.70 | 21.75 | 21.20 | 21.75 | 21.57 | 20.70 | 9,340 |   |  			
            | 12/2/2020 | -0.75 / -3.34% | 22.45 | 22.45 | 21.50 | 21.70 | 21.62 | 20.65 | 10,690 |   |  
            | 12/1/2020 | -0.10 / -0.44% | 21.55 | 22.50 | 21.55 | 22.45 | 21.95 | 21.36 | 5,020 |   |  			
            | 11/30/2020 | +0.15 / +0.67% | 22.00 | 22.55 | 22.00 | 22.55 | 22.47 | 21.46 | 12,830 |   |  
            | 11/27/2020 | +0.50 / +2.28% | 21.90 | 22.40 | 21.30 | 22.40 | 22.23 | 21.32 | 6,990 |   |  |