| 
    
        
            | 
                    Closing price on 5/24/2017
                 |  |  
    
        |           
                
                    | Open | 76.30 |  
                    | High | 76.50 |  
                    | Low | 76.00 |  
                    | Volume | 3,600 |  
                    | Split-adjusted Price | 22.25 |  
                
             | 
 |  NTP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 5/5/2017 | +0.70 / +0.96% | 74.00 | 74.00 | 73.00 | 73.80 | 73.16 | 21.46 | 4,370 |   |  			
            | 5/4/2017 | -1.90 / -2.53% | 74.00 | 74.00 | 73.00 | 73.10 | 73.10 | 21.26 | 9,417 |   |  
            | 5/3/2017 | -0.50 / -0.66% | 75.00 | 75.00 | 72.50 | 75.00 | 74.38 | 21.81 | 7,520 |   |  			
            | 4/28/2017 | +0.50 / +0.67% | 75.20 | 75.50 | 75.20 | 75.50 | 75.35 | 21.96 | 473 |   |  
            | 4/27/2017 | +0.10 / +0.13% | 75.00 | 75.00 | 75.00 | 75.00 | 75.00 | 21.81 | 3,300 |   |  			
            | 4/26/2017 | -0.60 / -0.79% | 71.80 | 75.40 | 71.80 | 74.90 | 73.48 | 21.78 | 115,210 |   |  
            | 4/25/2017 | -0.40 / -0.53% | 75.90 | 75.90 | 75.50 | 75.50 | 75.57 | 21.96 | 12,100 |   |  			
            | 4/24/2017 | -0.40 / -0.52% | 76.10 | 76.10 | 75.50 | 75.90 | 75.90 | 22.08 | 3,400 |   |  
            | 4/21/2017 | +0.30 / +0.39% | 76.00 | 76.40 | 76.00 | 76.30 | 76.09 | 22.19 | 14,130 |   |  			
            | 4/20/2017 | +0.40 / +0.53% | 76.00 | 76.10 | 75.90 | 76.00 | 76.00 | 22.10 | 7,766 |   |  
            | 4/19/2017 | +0.10 / +0.13% | 75.50 | 75.80 | 75.50 | 75.60 | 75.50 | 21.99 | 2,224 |   |  			
            | 4/18/2017 | +0.50 / +0.67% | 75.50 | 75.50 | 75.20 | 75.50 | 75.41 | 21.96 | 14,101 |   |  
            | 4/17/2017 | -0.10 / -0.13% | 75.70 | 75.70 | 75.00 | 75.00 | 75.32 | 21.81 | 12,069 |   |  			
            | 4/14/2017 | -0.70 / -0.92% | 76.00 | 76.00 | 75.10 | 75.10 | 75.80 | 21.84 | 31,120 |   |  
            | 4/13/2017 | +0.10 / +0.13% | 76.00 | 76.00 | 73.60 | 75.80 | 75.20 | 22.05 | 102,115 |   |  			
            | 4/12/2017 | -0.30 / -0.39% | 76.00 | 76.00 | 75.70 | 75.70 | 75.99 | 22.02 | 68,955 |   |  
            | 4/11/2017 | 0.00 / 0.00% | 75.50 | 76.50 | 75.50 | 76.00 | 76.00 | 22.10 | 35,220 |   |  |