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                    Closing price on 9/26/2018
                 |  |  
    
        |           
                
                    | Open | 49.80 |  
                    | High | 50.20 |  
                    | Low | 49.70 |  
                    | Volume | 68,650 |  
                    | Split-adjusted Price | 31.94 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/26/2018 | +0.50 / +1.01% | 49.80 | 50.20 | 49.70 | 50.20 | 50.01 | 31.94 | 68,650 |   |  
            | 9/25/2018 | 0.00 / 0.00% | 49.70 | 49.80 | 49.70 | 49.70 | 49.72 | 31.62 | 44,310 |   |  			
            | 9/24/2018 | 0.00 / 0.00% | 49.60 | 49.70 | 49.50 | 49.70 | 49.64 | 31.62 | 26,330 |   |  
            | 9/21/2018 | -0.10 / -0.20% | 49.70 | 49.80 | 49.60 | 49.70 | 49.70 | 31.62 | 48,670 |   |  			
            | 9/20/2018 | 0.00 / 0.00% | 49.80 | 49.80 | 49.50 | 49.80 | 49.58 | 31.69 | 13,250 |   |  
            | 9/19/2018 | +0.20 / +0.40% | 49.30 | 49.80 | 49.30 | 49.80 | 49.54 | 31.69 | 18,450 |   |  			
            | 9/18/2018 | +0.10 / +0.20% | 49.50 | 49.70 | 49.50 | 49.60 | 49.54 | 31.56 | 5,410 |   |  
            | 9/17/2018 | -0.30 / -0.60% | 52.80 | 52.80 | 49.50 | 49.50 | 49.69 | 31.50 | 9,620 |   |  			
            | 9/14/2018 | +0.30 / +0.61% | 49.60 | 49.80 | 49.50 | 49.80 | 49.66 | 31.69 | 14,900 |   |  
            | 9/13/2018 | +0.20 / +0.41% | 49.30 | 49.70 | 49.30 | 49.50 | 49.50 | 31.50 | 20,160 |   |  			
            | 9/12/2018 | -0.70 / -1.40% | 50.00 | 50.00 | 49.30 | 49.30 | 49.77 | 31.37 | 66,390 |   |  
            | 9/11/2018 | -0.40 / -0.79% | 50.40 | 50.50 | 50.00 | 50.00 | 50.25 | 31.81 | 24,040 |   |  			
            | 9/10/2018 | -1.30 / -2.51% | 50.70 | 51.00 | 50.40 | 50.40 | 50.50 | 32.07 | 23,780 |   |  
            | 9/7/2018 | -0.10 / -0.19% | 51.80 | 51.80 | 50.40 | 51.70 | 51.15 | 32.90 | 41,130 |   |  			
            | 9/6/2018 | -7.20 / -12.20% | 52.00 | 52.00 | 50.30 | 51.80 | 51.24 | 32.96 | 34,190 |   |  
            | 9/5/2018 | +0.10 / +0.17% | 58.90 | 59.00 | 58.40 | 59.00 | 58.74 | 33.09 | 138,740 |   |  			
            | 9/4/2018 | +0.50 / +0.86% | 58.40 | 59.40 | 58.40 | 58.90 | 58.67 | 33.03 | 145,640 |   |  
            | 8/31/2018 | +0.20 / +0.34% | 58.20 | 58.60 | 58.20 | 58.40 | 58.38 | 32.75 | 31,740 |   |  			
            | 8/30/2018 | +0.20 / +0.34% | 58.30 | 58.40 | 58.00 | 58.20 | 58.19 | 32.64 | 41,860 |   |  
            | 8/29/2018 | -0.20 / -0.34% | 58.00 | 58.20 | 58.00 | 58.00 | 58.05 | 32.53 | 22,930 |   |  			
            | 8/28/2018 | -0.20 / -0.34% | 58.00 | 58.30 | 57.70 | 58.20 | 57.96 | 32.64 | 9,300 |   |  
            | 8/27/2018 | -0.50 / -0.85% | 58.00 | 58.40 | 57.70 | 58.40 | 58.22 | 32.75 | 25,660 |   |  			
            | 8/24/2018 | +1.00 / +1.73% | 57.50 | 58.90 | 57.00 | 58.90 | 58.57 | 33.03 | 32,950 |   |  
            | 8/23/2018 | +0.90 / +1.58% | 57.20 | 57.90 | 57.00 | 57.90 | 57.26 | 32.47 | 19,280 |   |  			
            | 8/22/2018 | -0.50 / -0.87% | 57.50 | 57.70 | 57.00 | 57.00 | 57.35 | 31.96 | 26,660 |   |  
            | 8/21/2018 | -0.20 / -0.35% | 57.80 | 57.90 | 57.50 | 57.50 | 57.69 | 32.24 | 28,930 |   |  			
            | 8/20/2018 | -0.30 / -0.52% | 58.00 | 58.50 | 57.50 | 57.70 | 57.94 | 32.36 | 39,540 |   |  
            | 8/17/2018 | +0.20 / +0.35% | 57.90 | 58.70 | 57.60 | 58.00 | 58.03 | 32.53 | 56,300 |   |  			
            | 8/16/2018 | +0.20 / +0.35% | 57.50 | 57.90 | 57.10 | 57.80 | 57.61 | 32.41 | 27,930 |   |  
            | 8/15/2018 | +1.40 / +2.49% | 57.00 | 59.00 | 57.00 | 57.60 | 57.63 | 32.30 | 89,820 |   |  |