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                    Closing price on 3/2/2018
                 |  |  
    
        |           
                
                    | Open | 48.40 |  
                    | High | 48.60 |  
                    | Low | 48.40 |  
                    | Volume | 1,060 |  
                    | Split-adjusted Price | 39.99 |  
                
             | 
 |  NCS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/2/2018 | -0.90 / -1.82% | 48.40 | 48.60 | 48.40 | 48.60 | 48.53 | 39.99 | 1,060 |   |  
            | 3/1/2018 | +1.00 / +2.06% | 48.50 | 49.50 | 48.50 | 49.50 | 48.73 | 40.74 | 5,219 |   |  			
            | 2/28/2018 | 0.00 / 0.00% | 48.50 | 48.50 | 48.50 | 48.50 | 48.50 | 39.91 | 700 |   |  
            | 2/27/2018 | 0.00 / 0.00% | 48.50 | 48.50 | 48.50 | 48.50 | 48.50 | 39.91 | 1,816 |   |  			
            | 2/26/2018 | -0.10 / -0.21% | 48.50 | 48.60 | 48.50 | 48.50 | 48.54 | 39.91 | 2,704 |   |  
            | 2/23/2018 | +0.20 / +0.41% | 48.50 | 48.60 | 48.50 | 48.50 | 48.57 | 39.91 | 2,900 |   |  			
            | 2/22/2018 | +0.30 / +0.63% | 48.00 | 48.30 | 48.00 | 48.30 | 48.18 | 39.75 | 1,700 |   |  
            | 2/21/2018 | -0.40 / -0.83% | 48.40 | 48.40 | 48.00 | 48.00 | 48.27 | 39.50 | 1,400 |   |  			
            | 2/13/2018 | +1.00 / +2.11% | 48.00 | 48.50 | 48.00 | 48.50 | 48.34 | 39.91 | 823 |   |  
            | 2/12/2018 | -0.40 / -0.84% | 46.10 | 47.50 | 46.10 | 47.50 | 46.84 | 39.09 | 500 |   |  			
            | 2/9/2018 | -0.10 / -0.21% | 48.00 | 48.00 | 47.70 | 47.90 | 47.94 | 39.42 | 1,000 |   |  
            | 2/8/2018 | 0.00 / 0.00% | 48.00 | 48.00 | 48.00 | 48.00 | 48.00 | 39.50 | 0 |   |  			
            | 2/7/2018 | 0.00 / 0.00% | 48.00 | 48.00 | 48.00 | 48.00 | 48.00 | 39.50 | 1,000 |   |  
            | 2/6/2018 | +0.30 / +0.63% | 47.00 | 48.00 | 41.00 | 48.00 | 44.29 | 39.50 | 5,640 |   |  			
            | 2/5/2018 | -0.20 / -0.42% | 48.00 | 48.00 | 47.70 | 47.70 | 47.83 | 39.25 | 4,000 |   |  
            | 2/2/2018 | -1.20 / -2.45% | 48.00 | 48.00 | 47.80 | 47.80 | 47.93 | 39.34 | 2,100 |   |  			
            | 2/1/2018 | 0.00 / 0.00% | 48.70 | 49.00 | 48.50 | 49.00 | 48.52 | 40.32 | 11,100 |   |  
            | 1/31/2018 | 0.00 / 0.00% | 49.00 | 49.00 | 48.00 | 49.00 | 48.69 | 40.32 | 1,536 |   |  			
            | 1/30/2018 | -1.00 / -2.00% | 49.00 | 49.00 | 49.00 | 49.00 | 49.00 | 40.32 | 200 |   |  
            | 1/29/2018 | +0.30 / +0.60% | 48.50 | 50.00 | 47.00 | 50.00 | 48.83 | 41.15 | 4,520 |   |  			
            | 1/26/2018 | -2.00 / -3.92% | 51.00 | 51.20 | 49.00 | 49.00 | 49.74 | 40.32 | 7,000 |   |  
            | 1/25/2018 | -0.10 / -0.20% | 51.20 | 52.00 | 51.00 | 51.00 | 51.53 | 41.97 | 5,425 |   |  			
            | 1/24/2018 | +0.90 / +1.79% | 50.20 | 51.10 | 50.00 | 51.10 | 50.19 | 42.05 | 8,500 |   |  
            | 1/23/2018 | +1.70 / +3.51% | 48.50 | 50.50 | 48.50 | 50.20 | 49.27 | 41.31 | 20,739 |   |  			
            | 1/22/2018 | +0.10 / +0.21% | 48.40 | 48.50 | 48.30 | 48.50 | 48.44 | 39.91 | 1,500 |   |  
            | 1/19/2018 | 0.00 / 0.00% | 48.40 | 48.80 | 48.30 | 48.30 | 48.44 | 39.75 | 6,600 |   |  			
            | 1/18/2018 | -0.20 / -0.41% | 48.20 | 48.30 | 48.20 | 48.30 | 48.27 | 39.75 | 1,810 |   |  
            | 1/17/2018 | -0.20 / -0.41% | 48.30 | 48.50 | 48.30 | 48.50 | 48.48 | 39.91 | 5,600 |   |  			
            | 1/16/2018 | +0.10 / +0.21% | 47.30 | 49.00 | 47.30 | 48.70 | 48.26 | 40.08 | 4,668 |   |  
            | 1/15/2018 | -0.20 / -0.41% | 49.00 | 49.50 | 41.50 | 48.60 | 47.85 | 39.99 | 14,730 |   |  |