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            | 
                    Closing price on 6/16/2017
                 |  |  
    
        |           
                
                    | Open | 62.20 |  
                    | High | 65.50 |  
                    | Low | 59.50 |  
                    | Volume | 11,720 |  
                    | Split-adjusted Price | 23.05 |  
                
             | 
 |  NTP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/16/2017 | -0.30 / -0.46% | 62.20 | 65.50 | 59.50 | 65.20 | 65.05 | 23.05 | 11,720 |   |  
            | 6/15/2017 | +0.50 / +0.77% | 65.00 | 65.50 | 65.00 | 65.50 | 65.45 | 23.16 | 8,300 |   |  			
            | 6/14/2017 | -0.50 / -0.76% | 65.10 | 65.10 | 65.00 | 65.00 | 65.01 | 22.98 | 45,808 |   |  
            | 6/13/2017 | 0.00 / 0.00% | 65.90 | 65.90 | 64.00 | 65.50 | 64.88 | 23.16 | 37,272 |   |  			
            | 6/12/2017 | -0.40 / -0.61% | 65.40 | 65.90 | 65.40 | 65.50 | 65.55 | 23.16 | 10,800 |   |  
            | 6/9/2017 | -0.10 / -0.15% | 66.00 | 66.00 | 65.10 | 65.90 | 65.58 | 23.30 | 11,310 |   |  			
            | 6/8/2017 | +1.00 / +1.54% | 64.10 | 66.00 | 64.10 | 66.00 | 65.28 | 23.33 | 17,493 |   |  
            | 6/7/2017 | 0.00 / 0.00% | 65.00 | 65.00 | 65.00 | 65.00 | 65.00 | 22.98 | 44,100 |   |  			
            | 6/6/2017 | +0.90 / +1.40% | 64.90 | 65.00 | 64.10 | 65.00 | 64.89 | 22.98 | 19,989 |   |  
            | 6/5/2017 | -1.20 / -1.84% | 65.50 | 65.50 | 64.10 | 64.10 | 64.99 | 22.66 | 8,500 |   |  			
            | 6/2/2017 | -1.10 / -1.66% | 66.50 | 66.60 | 65.20 | 65.30 | 65.78 | 23.09 | 15,621 |   |  
            | 6/1/2017 | -13.10 / -16.48% | 65.50 | 66.50 | 65.50 | 66.40 | 66.28 | 23.48 | 21,550 |   |  			
            | 5/31/2017 | +1.50 / +1.92% | 78.20 | 80.50 | 78.20 | 79.50 | 79.93 | 23.12 | 103,385 |   |  
            | 5/30/2017 | +1.40 / +1.83% | 77.50 | 78.00 | 77.00 | 78.00 | 77.52 | 22.69 | 33,795 |   |  			
            | 5/29/2017 | +0.10 / +0.13% | 77.50 | 78.00 | 76.60 | 76.60 | 77.43 | 22.28 | 11,100 |   |  
            | 5/26/2017 | +0.60 / +0.79% | 75.90 | 76.50 | 75.50 | 76.50 | 76.04 | 22.25 | 1,244 |   |  			
            | 5/25/2017 | -0.60 / -0.78% | 76.00 | 77.00 | 75.00 | 75.90 | 75.83 | 22.08 | 3,530 |   |  
            | 5/24/2017 | -1.00 / -1.29% | 76.30 | 76.50 | 76.00 | 76.50 | 76.20 | 22.25 | 3,600 |   |  			
            | 5/23/2017 | +0.50 / +0.65% | 76.80 | 77.50 | 76.80 | 77.50 | 76.99 | 22.54 | 4,587 |   |  
            | 5/22/2017 | -0.40 / -0.52% | 77.30 | 77.40 | 76.50 | 77.00 | 77.02 | 22.39 | 2,597 |   |  			
            | 5/19/2017 | +0.50 / +0.65% | 76.70 | 77.40 | 76.20 | 77.40 | 76.30 | 22.51 | 9,320 |   |  
            | 5/18/2017 | -0.10 / -0.13% | 75.10 | 77.50 | 75.10 | 76.90 | 77.04 | 22.37 | 4,524 |   |  			
            | 5/17/2017 | 0.00 / 0.00% | 77.00 | 77.00 | 76.00 | 77.00 | 76.98 | 22.39 | 8,651 |   |  
            | 5/16/2017 | -1.00 / -1.28% | 76.00 | 78.00 | 76.00 | 77.00 | 77.13 | 22.39 | 16,578 |   |  			
            | 5/15/2017 | +1.30 / +1.69% | 77.00 | 78.00 | 77.00 | 78.00 | 77.12 | 22.69 | 13,380 |   |  
            | 5/12/2017 | +2.70 / +3.65% | 73.00 | 78.50 | 73.00 | 76.70 | 77.79 | 22.31 | 39,855 |   |  			
            | 5/11/2017 | 0.00 / 0.00% | 74.00 | 74.10 | 74.00 | 74.00 | 74.03 | 21.52 | 7,200 |   |  
            | 5/10/2017 | +0.50 / +0.68% | 73.60 | 74.00 | 73.60 | 74.00 | 73.97 | 21.52 | 7,936 |   |  			
            | 5/9/2017 | +0.50 / +0.68% | 73.00 | 73.50 | 73.00 | 73.50 | 73.40 | 21.38 | 10,400 |   |  
            | 5/8/2017 | -0.80 / -1.08% | 73.00 | 73.50 | 73.00 | 73.00 | 73.04 | 21.23 | 27,208 |   |  |