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                    Closing price on 8/18/2017
                 |  |  
    
        |           
                
                    | Open | 56.50 |  
                    | High | 56.90 |  
                    | Low | 55.90 |  
                    | Volume | 12,350 |  
                    | Split-adjusted Price | 28.50 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/18/2017 | +0.70 / +1.25% | 56.50 | 56.90 | 55.90 | 56.90 | 56.36 | 28.50 | 12,350 |   |  
            | 8/17/2017 | -0.80 / -1.40% | 57.00 | 57.00 | 56.20 | 56.20 | 56.36 | 28.15 | 4,720 |   |  			
            | 8/16/2017 | 0.00 / 0.00% | 57.00 | 57.20 | 56.10 | 57.00 | 56.81 | 28.55 | 16,880 |   |  
            | 8/15/2017 | +0.30 / +0.53% | 56.70 | 57.00 | 55.90 | 57.00 | 56.33 | 28.55 | 11,130 |   |  			
            | 8/14/2017 | -0.10 / -0.18% | 56.00 | 57.00 | 55.80 | 56.70 | 55.97 | 28.40 | 11,470 |   |  
            | 8/11/2017 | 0.00 / 0.00% | 56.70 | 56.80 | 56.00 | 56.80 | 56.20 | 28.45 | 8,150 |   |  			
            | 8/10/2017 | -0.20 / -0.35% | 56.50 | 57.00 | 55.50 | 56.80 | 56.40 | 28.45 | 10,000 |   |  
            | 8/9/2017 | 0.00 / 0.00% | 58.00 | 58.00 | 54.00 | 57.00 | 56.15 | 28.55 | 25,430 |   |  			
            | 8/8/2017 | -0.90 / -1.55% | 57.30 | 57.70 | 56.60 | 57.00 | 56.87 | 28.55 | 13,750 |   |  
            | 8/7/2017 | +0.40 / +0.70% | 56.60 | 57.90 | 56.60 | 57.90 | 57.18 | 29.00 | 4,040 |   |  			
            | 8/4/2017 | -0.20 / -0.35% | 57.00 | 57.70 | 56.50 | 57.50 | 56.93 | 28.80 | 28,440 |   |  
            | 8/3/2017 | -0.20 / -0.35% | 57.10 | 57.90 | 56.70 | 57.70 | 57.12 | 28.90 | 24,580 |   |  			
            | 8/2/2017 | -0.10 / -0.17% | 58.00 | 58.00 | 57.10 | 57.90 | 57.58 | 29.00 | 26,850 |   |  
            | 8/1/2017 | -0.80 / -1.36% | 58.80 | 58.80 | 58.00 | 58.00 | 58.08 | 29.05 | 52,100 |   |  			
            | 7/31/2017 | 0.00 / 0.00% | 58.90 | 58.90 | 58.00 | 58.80 | 58.48 | 29.45 | 17,830 |   |  
            | 7/28/2017 | +0.40 / +0.68% | 59.00 | 59.00 | 58.40 | 58.80 | 58.55 | 29.45 | 3,450 |   |  			
            | 7/27/2017 | +1.00 / +1.74% | 59.50 | 59.50 | 57.50 | 58.40 | 58.17 | 29.25 | 10,400 |   |  
            | 7/26/2017 | +0.70 / +1.23% | 57.20 | 57.40 | 56.80 | 57.40 | 56.89 | 28.75 | 27,510 |   |  			
            | 7/25/2017 | -0.80 / -1.39% | 57.50 | 58.90 | 56.60 | 56.70 | 57.11 | 28.40 | 20,820 |   |  
            | 7/24/2017 | -0.80 / -1.37% | 58.80 | 58.80 | 57.50 | 57.50 | 58.10 | 28.80 | 8,090 |   |  			
            | 7/21/2017 | 0.00 / 0.00% | 58.40 | 58.50 | 58.00 | 58.30 | 58.29 | 29.20 | 6,330 |   |  
            | 7/20/2017 | -0.20 / -0.34% | 58.50 | 58.50 | 57.50 | 58.30 | 57.94 | 29.20 | 25,890 |   |  			
            | 7/19/2017 | -1.20 / -2.01% | 58.60 | 58.70 | 58.30 | 58.50 | 58.40 | 29.30 | 8,510 |   |  
            | 7/18/2017 | +0.20 / +0.34% | 59.00 | 60.00 | 58.30 | 59.70 | 59.07 | 29.90 | 14,170 |   |  			
            | 7/17/2017 | -0.50 / -0.83% | 59.00 | 59.80 | 58.20 | 59.50 | 58.84 | 29.80 | 11,590 |   |  
            | 7/14/2017 | 0.00 / 0.00% | 59.90 | 60.00 | 58.90 | 60.00 | 59.85 | 30.05 | 11,830 |   |  			
            | 7/13/2017 | -0.40 / -0.66% | 60.40 | 60.50 | 59.00 | 60.00 | 59.57 | 30.05 | 11,500 |   |  
            | 7/12/2017 | +0.40 / +0.67% | 60.50 | 60.50 | 59.60 | 60.40 | 60.08 | 30.25 | 19,590 |   |  			
            | 7/11/2017 | 0.00 / 0.00% | 59.70 | 60.00 | 58.30 | 60.00 | 59.11 | 30.05 | 18,220 |   |  
            | 7/10/2017 | -0.20 / -0.33% | 60.00 | 60.00 | 58.00 | 60.00 | 58.93 | 30.05 | 37,740 |   |  |