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                    Closing price on 4/12/2018
                 |  |  
    
        |           
                
                    | Open | 47.40 |  
                    | High | 47.45 |  
                    | Low | 47.30 |  
                    | Volume | 54,350 |  
                    | Split-adjusted Price | 26.61 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/12/2018 | -0.20 / -0.42% | 47.40 | 47.45 | 47.30 | 47.45 | 47.36 | 26.61 | 54,350 |   |  
            | 4/11/2018 | +0.05 / +0.11% | 48.35 | 48.35 | 47.30 | 47.65 | 47.46 | 26.72 | 24,970 |   |  			
            | 4/10/2018 | +0.10 / +0.21% | 48.40 | 48.40 | 47.50 | 47.60 | 47.59 | 26.69 | 16,200 |   |  
            | 4/9/2018 | +0.50 / +1.06% | 47.00 | 47.75 | 47.00 | 47.50 | 47.36 | 26.64 | 29,560 |   |  			
            | 4/6/2018 | +0.50 / +1.08% | 46.50 | 47.00 | 46.20 | 47.00 | 46.53 | 26.36 | 44,900 |   |  
            | 4/5/2018 | -0.20 / -0.43% | 46.50 | 46.70 | 46.30 | 46.50 | 46.55 | 26.08 | 22,730 |   |  			
            | 4/4/2018 | -0.10 / -0.21% | 46.70 | 47.00 | 46.60 | 46.70 | 46.71 | 26.19 | 18,990 |   |  
            | 4/3/2018 | -0.05 / -0.11% | 46.85 | 47.00 | 46.60 | 46.80 | 46.78 | 26.24 | 38,610 |   |  			
            | 4/2/2018 | +0.05 / +0.11% | 46.90 | 46.90 | 46.80 | 46.85 | 46.81 | 26.27 | 50,290 |   |  
            | 3/30/2018 | -0.45 / -0.95% | 47.30 | 47.40 | 46.80 | 46.80 | 47.01 | 26.24 | 55,330 |   |  			
            | 3/29/2018 | -0.05 / -0.11% | 47.50 | 47.60 | 47.15 | 47.25 | 47.29 | 26.50 | 28,760 |   |  
            | 3/28/2018 | -0.40 / -0.84% | 47.90 | 47.90 | 47.30 | 47.30 | 47.55 | 26.52 | 15,310 |   |  			
            | 3/27/2018 | -0.40 / -0.83% | 48.10 | 48.10 | 47.60 | 47.70 | 47.93 | 26.75 | 24,100 |   |  
            | 3/26/2018 | -0.20 / -0.41% | 48.20 | 48.20 | 48.00 | 48.10 | 48.06 | 26.97 | 18,830 |   |  			
            | 3/23/2018 | -0.40 / -0.82% | 48.60 | 48.60 | 48.00 | 48.30 | 48.40 | 27.09 | 29,610 |   |  
            | 3/22/2018 | -0.10 / -0.20% | 48.60 | 48.80 | 48.50 | 48.70 | 48.65 | 27.31 | 8,490 |   |  			
            | 3/21/2018 | -0.10 / -0.20% | 48.90 | 49.00 | 48.50 | 48.80 | 48.82 | 27.37 | 28,430 |   |  
            | 3/20/2018 | 0.00 / 0.00% | 48.90 | 49.00 | 48.60 | 48.90 | 48.86 | 27.42 | 21,920 |   |  			
            | 3/19/2018 | -2.50 / -4.86% | 48.50 | 49.50 | 48.50 | 48.90 | 48.80 | 27.42 | 16,210 |   |  
            | 3/16/2018 | -1.20 / -2.28% | 52.60 | 52.90 | 51.40 | 51.40 | 51.82 | 27.14 | 121,920 |   |  			
            | 3/15/2018 | 0.00 / 0.00% | 52.90 | 52.90 | 52.00 | 52.60 | 52.47 | 27.78 | 42,920 |   |  
            | 3/14/2018 | 0.00 / 0.00% | 52.60 | 52.70 | 52.60 | 52.60 | 52.63 | 27.78 | 48,280 |   |  			
            | 3/13/2018 | 0.00 / 0.00% | 52.70 | 52.70 | 52.60 | 52.60 | 52.66 | 27.78 | 43,450 |   |  
            | 3/12/2018 | 0.00 / 0.00% | 52.50 | 52.70 | 52.50 | 52.60 | 52.61 | 27.78 | 49,340 |   |  			
            | 3/9/2018 | 0.00 / 0.00% | 52.60 | 52.70 | 52.30 | 52.60 | 52.55 | 27.78 | 53,570 |   |  
            | 3/8/2018 | +0.50 / +0.96% | 52.10 | 52.90 | 52.10 | 52.60 | 52.69 | 27.78 | 3,720 |   |  			
            | 3/7/2018 | -0.50 / -0.95% | 53.00 | 53.00 | 52.10 | 52.10 | 52.53 | 27.51 | 32,020 |   |  
            | 3/6/2018 | 0.00 / 0.00% | 53.00 | 53.00 | 52.60 | 52.60 | 52.67 | 27.78 | 39,740 |   |  			
            | 3/5/2018 | -1.30 / -2.41% | 53.70 | 53.70 | 52.60 | 52.60 | 52.90 | 27.78 | 42,100 |   |  
            | 3/2/2018 | 0.00 / 0.00% | 53.90 | 53.90 | 52.80 | 53.90 | 53.13 | 28.46 | 39,580 |   |  |