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                    Closing price on 7/3/2017
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        |           
                
                    | Open | 59.00 |  
                    | High | 59.00 |  
                    | Low | 58.80 |  
                    | Volume | 7,444 |  
                    | Split-adjusted Price | 33.25 |  
                
             | 
 |  NCS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/3/2017 | +0.10 / +0.17% | 59.00 | 59.00 | 58.80 | 58.80 | 58.95 | 33.25 | 7,444 |   |  
            | 6/30/2017 | 0.00 / 0.00% | 58.70 | 58.70 | 58.60 | 58.60 | 58.69 | 33.14 | 5,300 |   |  			
            | 6/29/2017 | +0.30 / +0.51% | 58.40 | 58.70 | 58.40 | 58.60 | 58.59 | 33.14 | 7,500 |   |  
            | 6/28/2017 | 0.00 / 0.00% | 58.30 | 58.30 | 58.30 | 58.30 | 58.30 | 32.97 | 5,000 |   |  			
            | 6/27/2017 | +1.20 / +2.10% | 58.00 | 58.30 | 58.00 | 58.30 | 58.19 | 32.97 | 17,600 |   |  
            | 6/26/2017 | 0.00 / 0.00% | 57.10 | 57.10 | 57.10 | 57.10 | 57.10 | 32.29 | 0 |   |  			
            | 6/23/2017 | -1.00 / -1.72% | 57.00 | 57.30 | 57.00 | 57.30 | 57.12 | 32.40 | 2,100 |   |  
            | 6/22/2017 | +0.70 / +1.22% | 58.00 | 58.50 | 58.00 | 58.30 | 58.19 | 32.97 | 9,813 |   |  			
            | 6/21/2017 | +2.50 / +4.54% | 57.50 | 58.00 | 57.00 | 57.60 | 57.65 | 32.57 | 17,510 |   |  
            | 6/20/2017 | -2.40 / -4.17% | 55.10 | 55.10 | 55.10 | 55.10 | 55.10 | 31.16 | 400 |   |  			
            | 6/19/2017 | -0.50 / -0.86% | 57.60 | 57.60 | 57.50 | 57.50 | 57.52 | 32.51 | 1,705 |   |  
            | 6/16/2017 | +0.50 / +0.87% | 58.00 | 58.00 | 58.00 | 58.00 | 58.00 | 32.80 | 1,109 |   |  			
            | 6/15/2017 | 0.00 / 0.00% | 57.90 | 57.90 | 57.50 | 57.50 | 57.76 | 32.51 | 1,251 |   |  
            | 6/14/2017 | -1.50 / -2.54% | 58.00 | 58.00 | 57.50 | 57.50 | 57.86 | 32.51 | 1,100 |   |  			
            | 6/13/2017 | +2.00 / +3.51% | 57.50 | 59.00 | 57.50 | 59.00 | 58.92 | 33.36 | 10,400 |   |  
            | 6/12/2017 | 0.00 / 0.00% | 57.00 | 57.00 | 57.00 | 57.00 | 57.00 | 32.23 | 5 |   |  			
            | 6/9/2017 | +1.00 / +1.79% | 57.00 | 57.00 | 57.00 | 57.00 | 57.00 | 32.23 | 2,505 |   |  
            | 6/8/2017 | -0.50 / -0.88% | 57.50 | 57.50 | 56.00 | 56.00 | 56.96 | 31.67 | 1,300 |   |  			
            | 6/7/2017 | -1.10 / -1.91% | 56.50 | 56.50 | 56.50 | 56.50 | 56.50 | 31.95 | 141 |   |  
            | 6/6/2017 | +0.10 / +0.17% | 57.50 | 58.00 | 57.50 | 57.60 | 57.80 | 32.57 | 3,429 |   |  			
            | 6/5/2017 | +0.60 / +1.05% | 57.00 | 57.50 | 57.00 | 57.50 | 57.37 | 32.51 | 6,510 |   |  
            | 6/2/2017 | +0.40 / +0.70% | 57.00 | 57.40 | 57.00 | 57.40 | 57.20 | 32.46 | 4,700 |   |  			
            | 6/1/2017 | +0.50 / +0.88% | 56.20 | 57.00 | 56.20 | 57.00 | 56.97 | 32.23 | 2,700 |   |  
            | 5/31/2017 | +1.20 / +2.17% | 55.50 | 56.50 | 55.50 | 56.50 | 56.20 | 31.95 | 600 |   |  			
            | 5/30/2017 | +0.30 / +0.55% | 55.20 | 56.50 | 55.20 | 55.30 | 55.39 | 31.27 | 2,300 |   |  
            | 5/29/2017 | -1.00 / -1.79% | 56.00 | 56.00 | 55.00 | 55.00 | 55.16 | 31.10 | 1,900 |   |  			
            | 5/26/2017 | +1.00 / +1.82% | 56.00 | 56.00 | 56.00 | 56.00 | 56.00 | 31.67 | 1,100 |   |  
            | 5/25/2017 | -4.00 / -6.78% | 54.00 | 57.00 | 54.00 | 55.00 | 55.25 | 31.10 | 4,600 |   |  			
            | 5/24/2017 | -0.90 / -1.50% | 59.50 | 59.50 | 59.00 | 59.00 | 59.35 | 31.68 | 1,503 |   |  
            | 5/23/2017 | -0.30 / -0.50% | 59.10 | 59.90 | 59.00 | 59.90 | 59.13 | 32.16 | 2,300 |   |  |