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                    Closing price on 7/6/2017
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        |           
                
                    | Open | 66.60 |  
                    | High | 66.60 |  
                    | Low | 62.50 |  
                    | Volume | 26,470 |  
                    | Split-adjusted Price | 31.35 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/6/2017 | -20.50 / -24.67% | 66.60 | 66.60 | 62.50 | 62.60 | 63.09 | 31.35 | 26,470 |   |  
            | 7/5/2017 | -0.30 / -0.36% | 83.40 | 83.40 | 82.00 | 83.10 | 82.88 | 31.21 | 75,050 |   |  			
            | 7/4/2017 | -0.20 / -0.24% | 83.90 | 83.90 | 82.90 | 83.40 | 83.41 | 31.33 | 69,630 |   |  
            | 7/3/2017 | 0.00 / 0.00% | 83.90 | 84.10 | 83.60 | 83.60 | 83.85 | 31.40 | 48,680 |   |  			
            | 6/30/2017 | -0.40 / -0.48% | 84.00 | 84.20 | 83.50 | 83.60 | 83.75 | 31.40 | 75,520 |   |  
            | 6/29/2017 | 0.00 / 0.00% | 84.00 | 84.10 | 83.70 | 84.00 | 83.91 | 31.55 | 28,100 |   |  			
            | 6/28/2017 | -0.20 / -0.24% | 84.20 | 84.20 | 83.60 | 84.00 | 83.96 | 31.55 | 20,140 |   |  
            | 6/27/2017 | 0.00 / 0.00% | 84.20 | 84.20 | 83.50 | 84.20 | 83.97 | 31.63 | 34,560 |   |  			
            | 6/26/2017 | +0.60 / +0.72% | 83.50 | 84.40 | 83.10 | 84.20 | 84.00 | 31.63 | 57,260 |   |  
            | 6/23/2017 | +0.60 / +0.72% | 84.90 | 84.90 | 83.60 | 83.60 | 84.21 | 31.40 | 96,870 |   |  			
            | 6/22/2017 | +0.50 / +0.61% | 81.30 | 83.30 | 81.30 | 83.00 | 83.00 | 31.18 | 28,700 |   |  
            | 6/21/2017 | +0.70 / +0.86% | 81.80 | 82.60 | 80.50 | 82.50 | 82.09 | 30.99 | 33,550 |   |  			
            | 6/20/2017 | +1.80 / +2.25% | 80.50 | 82.40 | 80.00 | 81.80 | 81.42 | 30.73 | 55,340 |   |  
            | 6/19/2017 | +0.20 / +0.25% | 79.80 | 80.50 | 79.00 | 80.00 | 79.93 | 30.05 | 8,670 |   |  			
            | 6/16/2017 | +0.30 / +0.38% | 79.50 | 79.80 | 78.80 | 79.80 | 79.41 | 29.97 | 29,380 |   |  
            | 6/15/2017 | +0.10 / +0.13% | 78.80 | 79.60 | 78.80 | 79.50 | 79.37 | 29.86 | 14,060 |   |  			
            | 6/14/2017 | +1.30 / +1.66% | 78.10 | 79.40 | 78.10 | 79.40 | 79.21 | 29.82 | 19,870 |   |  
            | 6/13/2017 | -1.10 / -1.39% | 79.00 | 79.40 | 78.10 | 78.10 | 78.25 | 29.34 | 14,990 |   |  			
            | 6/12/2017 | -0.20 / -0.25% | 79.00 | 79.20 | 78.10 | 79.20 | 78.80 | 29.75 | 10,800 |   |  
            | 6/9/2017 | -0.50 / -0.63% | 79.40 | 79.70 | 79.00 | 79.40 | 79.11 | 29.82 | 10,960 |   |  			
            | 6/8/2017 | +0.40 / +0.50% | 79.50 | 79.90 | 78.60 | 79.90 | 79.61 | 30.01 | 23,490 |   |  
            | 6/7/2017 | -0.20 / -0.25% | 79.70 | 79.70 | 78.60 | 79.50 | 79.23 | 29.86 | 23,590 |   |  			
            | 6/6/2017 | -0.30 / -0.38% | 79.00 | 80.00 | 79.00 | 79.70 | 79.21 | 29.94 | 14,190 |   |  
            | 6/5/2017 | +0.70 / +0.88% | 78.70 | 80.00 | 78.50 | 80.00 | 79.02 | 30.05 | 18,640 |   |  			
            | 6/2/2017 | +0.80 / +1.02% | 79.30 | 79.30 | 78.50 | 79.30 | 78.79 | 29.79 | 9,290 |   |  
            | 6/1/2017 | -1.50 / -1.88% | 79.50 | 80.80 | 78.50 | 78.50 | 79.04 | 29.49 | 27,150 |   |  			
            | 5/31/2017 | -0.10 / -0.12% | 80.00 | 80.10 | 79.10 | 80.00 | 79.79 | 30.05 | 11,530 |   |  
            | 5/30/2017 | -0.90 / -1.11% | 81.00 | 81.00 | 79.00 | 80.10 | 80.04 | 30.09 | 29,260 |   |  			
            | 5/29/2017 | +1.00 / +1.25% | 80.00 | 81.90 | 80.00 | 81.00 | 80.78 | 30.43 | 32,990 |   |  
            | 5/26/2017 | +1.00 / +1.27% | 79.00 | 80.00 | 78.40 | 80.00 | 79.46 | 30.05 | 54,720 |   |  |