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            | 
                    Closing price on 10/12/2017
                 |  |  
    
        |           
                
                    | Open | 55.00 |  
                    | High | 55.00 |  
                    | Low | 54.70 |  
                    | Volume | 21,850 |  
                    | Split-adjusted Price | 29.04 |  
                
             | 
 |  NNC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/12/2017 | 0.00 / 0.00% | 55.00 | 55.00 | 54.70 | 55.00 | 54.92 | 29.04 | 21,850 |   |  
            | 10/11/2017 | -3.20 / -5.50% | 56.00 | 56.00 | 55.00 | 55.00 | 55.12 | 29.04 | 66,980 |   |  			
            | 10/10/2017 | -1.00 / -1.69% | 59.00 | 59.00 | 58.10 | 58.20 | 58.42 | 29.15 | 76,390 |   |  
            | 10/9/2017 | +0.20 / +0.34% | 59.00 | 59.20 | 58.00 | 59.20 | 58.51 | 29.65 | 118,800 |   |  			
            | 10/6/2017 | 0.00 / 0.00% | 59.00 | 59.00 | 58.30 | 59.00 | 58.77 | 29.55 | 17,390 |   |  
            | 10/5/2017 | -0.30 / -0.51% | 59.30 | 59.30 | 58.60 | 59.00 | 58.90 | 29.55 | 9,610 |   |  			
            | 10/4/2017 | +0.40 / +0.68% | 58.90 | 59.30 | 57.80 | 59.30 | 58.54 | 29.70 | 28,970 |   |  
            | 10/3/2017 | +0.90 / +1.55% | 58.00 | 59.00 | 57.80 | 58.90 | 58.09 | 29.50 | 41,970 |   |  			
            | 10/2/2017 | -0.40 / -0.68% | 58.40 | 58.50 | 57.80 | 58.00 | 58.01 | 29.05 | 15,550 |   |  
            | 9/29/2017 | 0.00 / 0.00% | 58.50 | 58.50 | 57.80 | 58.40 | 58.14 | 29.25 | 57,190 |   |  			
            | 9/28/2017 | +0.30 / +0.52% | 58.80 | 58.80 | 57.70 | 58.40 | 58.33 | 29.25 | 115,640 |   |  
            | 9/27/2017 | +2.60 / +4.68% | 57.40 | 58.20 | 57.00 | 58.10 | 57.79 | 29.10 | 131,780 |   |  			
            | 9/26/2017 | +0.20 / +0.36% | 55.30 | 55.50 | 54.70 | 55.50 | 55.04 | 27.80 | 70,930 |   |  
            | 9/25/2017 | -0.20 / -0.36% | 55.50 | 55.50 | 54.50 | 55.30 | 55.01 | 27.70 | 54,390 |   |  			
            | 9/22/2017 | +1.20 / +2.21% | 55.40 | 55.50 | 54.20 | 55.50 | 54.56 | 27.80 | 50,330 |   |  
            | 9/21/2017 | -0.20 / -0.37% | 54.50 | 54.60 | 54.30 | 54.30 | 54.45 | 27.20 | 29,240 |   |  			
            | 9/20/2017 | 0.00 / 0.00% | 54.50 | 54.80 | 54.20 | 54.50 | 54.56 | 27.30 | 39,020 |   |  
            | 9/19/2017 | +0.30 / +0.55% | 54.60 | 54.90 | 54.10 | 54.50 | 54.31 | 27.30 | 13,700 |   |  			
            | 9/18/2017 | -0.80 / -1.45% | 55.00 | 55.00 | 54.10 | 54.20 | 54.28 | 27.15 | 13,800 |   |  
            | 9/15/2017 | +0.60 / +1.10% | 54.10 | 55.00 | 53.80 | 55.00 | 54.18 | 27.55 | 30,840 |   |  			
            | 9/14/2017 | -0.30 / -0.55% | 54.50 | 54.50 | 54.10 | 54.40 | 54.30 | 27.25 | 9,060 |   |  
            | 9/13/2017 | 0.00 / 0.00% | 54.20 | 54.70 | 54.10 | 54.70 | 54.26 | 27.40 | 16,550 |   |  			
            | 9/12/2017 | -0.30 / -0.55% | 54.50 | 55.00 | 53.50 | 54.70 | 54.13 | 27.40 | 9,570 |   |  
            | 9/11/2017 | 0.00 / 0.00% | 54.50 | 55.00 | 54.20 | 55.00 | 54.62 | 27.55 | 7,360 |   |  			
            | 9/8/2017 | +0.20 / +0.36% | 54.50 | 55.00 | 54.20 | 55.00 | 54.58 | 27.55 | 7,530 |   |  
            | 9/7/2017 | -0.20 / -0.36% | 55.00 | 55.10 | 54.10 | 54.80 | 54.69 | 27.45 | 26,750 |   |  			
            | 9/6/2017 | -0.20 / -0.36% | 55.10 | 55.20 | 54.60 | 55.00 | 54.96 | 27.55 | 17,630 |   |  
            | 9/5/2017 | +0.50 / +0.91% | 55.40 | 55.40 | 54.50 | 55.20 | 54.85 | 27.65 | 10,610 |   |  			
            | 9/1/2017 | -0.30 / -0.55% | 55.20 | 55.20 | 54.00 | 54.70 | 54.52 | 27.40 | 18,160 |   |  
            | 8/31/2017 | -0.20 / -0.36% | 55.00 | 55.40 | 53.90 | 55.00 | 54.70 | 27.55 | 13,400 |   |  |