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            | 
                    Closing price on 3/4/2019
                 |  |  
    
        |           
                
                    | Open | 49.70 |  
                    | High | 49.70 |  
                    | Low | 49.20 |  
                    | Volume | 23,200 |  
                    | Split-adjusted Price | 35.20 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/4/2019 | -0.50 / -1.01% | 49.70 | 49.70 | 49.20 | 49.20 | 49.40 | 35.20 | 23,200 |   |  
            | 3/1/2019 | +0.20 / +0.40% | 49.20 | 49.70 | 49.15 | 49.70 | 49.31 | 35.56 | 6,510 |   |  			
            | 2/28/2019 | -0.40 / -0.80% | 49.90 | 49.90 | 49.50 | 49.50 | 49.70 | 35.42 | 16,860 |   |  
            | 2/27/2019 | -1.80 / -3.48% | 50.00 | 50.40 | 49.50 | 49.90 | 49.86 | 35.70 | 40,450 |   |  			
            | 2/26/2019 | +0.10 / +0.19% | 51.70 | 51.70 | 51.60 | 51.70 | 51.61 | 35.56 | 72,390 |   |  
            | 2/25/2019 | -0.20 / -0.39% | 51.80 | 51.80 | 51.60 | 51.60 | 51.72 | 35.49 | 36,620 |   |  			
            | 2/22/2019 | 0.00 / 0.00% | 51.80 | 51.90 | 51.80 | 51.80 | 51.82 | 35.63 | 60,860 |   |  
            | 2/21/2019 | 0.00 / 0.00% | 51.70 | 51.80 | 51.60 | 51.80 | 51.70 | 35.63 | 16,130 |   |  			
            | 2/20/2019 | -0.10 / -0.19% | 51.70 | 51.90 | 51.70 | 51.80 | 51.75 | 35.63 | 37,140 |   |  
            | 2/19/2019 | -0.10 / -0.19% | 51.80 | 51.90 | 51.50 | 51.90 | 51.70 | 35.70 | 16,730 |   |  			
            | 2/18/2019 | +0.30 / +0.58% | 52.00 | 52.30 | 51.80 | 52.00 | 51.93 | 35.77 | 77,060 |   |  
            | 2/15/2019 | -0.30 / -0.58% | 52.00 | 52.00 | 51.70 | 51.70 | 51.84 | 35.56 | 24,480 |   |  			
            | 2/14/2019 | -0.20 / -0.38% | 52.10 | 52.10 | 51.90 | 52.00 | 52.04 | 35.77 | 12,530 |   |  
            | 2/13/2019 | +0.10 / +0.19% | 52.10 | 52.40 | 51.90 | 52.20 | 52.18 | 35.90 | 52,760 |   |  			
            | 2/12/2019 | +0.10 / +0.19% | 52.10 | 52.10 | 51.80 | 52.10 | 51.99 | 35.83 | 36,260 |   |  
            | 2/11/2019 | -0.30 / -0.57% | 52.30 | 52.50 | 51.90 | 52.00 | 52.17 | 35.77 | 28,160 |   |  			
            | 2/1/2019 | +0.30 / +0.58% | 52.00 | 52.50 | 51.20 | 52.30 | 52.02 | 35.97 | 23,510 |   |  
            | 1/31/2019 | +0.10 / +0.19% | 52.00 | 52.00 | 51.90 | 52.00 | 51.97 | 35.77 | 45,120 |   |  			
            | 1/30/2019 | +0.50 / +0.97% | 51.40 | 52.00 | 51.20 | 51.90 | 51.73 | 35.70 | 23,660 |   |  
            | 1/29/2019 | +0.40 / +0.78% | 51.00 | 51.40 | 50.80 | 51.40 | 51.17 | 35.35 | 25,250 |   |  			
            | 1/28/2019 | +0.20 / +0.39% | 50.70 | 51.00 | 50.60 | 51.00 | 50.70 | 35.08 | 16,410 |   |  
            | 1/25/2019 | +1.20 / +2.42% | 51.00 | 51.00 | 49.50 | 50.80 | 49.63 | 34.94 | 5,400 |   |  			
            | 1/24/2019 | -0.40 / -0.80% | 50.00 | 50.00 | 49.50 | 49.60 | 49.62 | 34.11 | 6,650 |   |  
            | 1/23/2019 | 0.00 / 0.00% | 49.30 | 50.30 | 49.30 | 50.00 | 49.90 | 34.39 | 5,230 |   |  			
            | 1/22/2019 | +0.80 / +1.63% | 50.80 | 51.00 | 49.60 | 50.00 | 50.48 | 34.39 | 19,670 |   |  
            | 1/21/2019 | +0.50 / +1.03% | 48.70 | 49.50 | 48.50 | 49.20 | 49.00 | 33.84 | 11,450 |   |  			
            | 1/18/2019 | -0.10 / -0.20% | 48.60 | 48.90 | 48.50 | 48.70 | 48.52 | 33.50 | 4,720 |   |  
            | 1/17/2019 | +0.10 / +0.21% | 48.70 | 49.20 | 48.70 | 48.80 | 48.95 | 33.56 | 4,270 |   |  			
            | 1/16/2019 | -0.30 / -0.61% | 49.50 | 49.50 | 48.70 | 48.70 | 48.95 | 33.50 | 1,430 |   |  
            | 1/15/2019 | +0.80 / +1.66% | 48.70 | 49.00 | 48.70 | 49.00 | 48.78 | 33.70 | 17,200 |   |  |