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                    Closing price on 3/16/2018
                 |  |  
    
        |           
                
                    | Open | 64.50 |  
                    | High | 65.50 |  
                    | Low | 64.10 |  
                    | Volume | 15,620 |  
                    | Split-adjusted Price | 22.80 |  
                
             | 
 |  NTP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/16/2018 | 0.00 / 0.00% | 64.50 | 65.50 | 64.10 | 64.50 | 64.41 | 22.80 | 15,620 |   |  
            | 3/15/2018 | -1.30 / -1.98% | 65.10 | 65.10 | 64.30 | 64.50 | 64.65 | 22.80 | 64,000 |   |  			
            | 3/14/2018 | +0.80 / +1.23% | 67.40 | 67.40 | 64.80 | 65.80 | 66.72 | 23.26 | 40,592 |   |  
            | 3/13/2018 | -0.50 / -0.76% | 65.50 | 66.80 | 65.00 | 65.00 | 65.18 | 22.98 | 15,524 |   |  			
            | 3/12/2018 | -1.50 / -2.24% | 67.50 | 67.50 | 65.00 | 65.50 | 65.29 | 23.16 | 33,769 |   |  
            | 3/9/2018 | +1.00 / +1.52% | 67.00 | 67.70 | 65.50 | 67.00 | 66.09 | 23.69 | 10,665 |   |  			
            | 3/8/2018 | -0.40 / -0.60% | 66.40 | 67.20 | 66.00 | 66.00 | 66.40 | 23.33 | 15,700 |   |  
            | 3/7/2018 | -0.60 / -0.90% | 67.00 | 67.50 | 66.30 | 66.40 | 67.03 | 23.48 | 14,880 |   |  			
            | 3/6/2018 | -1.70 / -2.47% | 67.70 | 67.70 | 67.00 | 67.00 | 67.13 | 23.69 | 12,410 |   |  
            | 3/5/2018 | +1.70 / +2.54% | 68.90 | 68.90 | 67.40 | 68.70 | 68.06 | 24.29 | 6,420 |   |  			
            | 3/2/2018 | -0.70 / -1.03% | 67.70 | 67.70 | 66.80 | 67.00 | 67.09 | 23.69 | 49,540 |   |  
            | 3/1/2018 | -1.00 / -1.46% | 68.00 | 68.00 | 67.00 | 67.70 | 67.78 | 23.94 | 20,510 |   |  			
            | 2/28/2018 | +0.10 / +0.15% | 68.60 | 69.00 | 67.60 | 68.70 | 68.48 | 24.29 | 15,963 |   |  
            | 2/27/2018 | +1.00 / +1.48% | 67.60 | 68.60 | 66.90 | 68.60 | 67.34 | 24.25 | 40,910 |   |  			
            | 2/26/2018 | -2.30 / -3.29% | 69.50 | 69.60 | 66.10 | 67.60 | 67.27 | 23.90 | 31,501 |   |  
            | 2/23/2018 | +1.70 / +2.49% | 68.20 | 70.00 | 67.00 | 69.90 | 69.52 | 24.71 | 54,400 |   |  			
            | 2/22/2018 | -1.20 / -1.73% | 68.00 | 70.00 | 68.00 | 68.20 | 69.33 | 24.11 | 27,750 |   |  
            | 2/21/2018 | +0.90 / +1.31% | 68.50 | 69.40 | 68.50 | 69.40 | 68.89 | 24.54 | 15,123 |   |  			
            | 2/13/2018 | +4.00 / +6.20% | 66.70 | 69.40 | 66.70 | 68.50 | 68.76 | 24.22 | 48,455 |   |  
            | 2/12/2018 | +0.50 / +0.78% | 64.00 | 65.00 | 64.00 | 64.50 | 64.52 | 22.80 | 3,700 |   |  			
            | 2/9/2018 | -0.80 / -1.23% | 63.10 | 64.00 | 60.10 | 64.00 | 63.04 | 22.63 | 35,721 |   |  
            | 2/8/2018 | +1.80 / +2.86% | 68.50 | 69.30 | 63.10 | 64.80 | 64.62 | 22.91 | 13,400 |   |  			
            | 2/7/2018 | +3.00 / +5.00% | 62.90 | 66.00 | 62.20 | 63.00 | 64.69 | 22.27 | 66,821 |   |  
            | 2/6/2018 | -3.00 / -4.76% | 63.50 | 63.50 | 58.50 | 60.00 | 59.34 | 21.21 | 192,850 |   |  			
            | 2/5/2018 | -2.60 / -3.96% | 65.20 | 65.30 | 63.00 | 63.00 | 64.08 | 22.27 | 116,115 |   |  
            | 2/2/2018 | -0.80 / -1.20% | 66.00 | 66.50 | 65.20 | 65.60 | 65.75 | 23.19 | 99,460 |   |  			
            | 2/1/2018 | -0.60 / -0.90% | 66.90 | 67.00 | 66.00 | 66.40 | 66.44 | 23.48 | 79,010 |   |  
            | 1/31/2018 | -1.00 / -1.47% | 67.80 | 67.80 | 66.80 | 67.00 | 67.22 | 23.69 | 43,140 |   |  			
            | 1/30/2018 | +0.50 / +0.74% | 69.00 | 70.90 | 66.50 | 68.00 | 67.36 | 24.04 | 98,115 |   |  
            | 1/29/2018 | -0.50 / -0.74% | 68.10 | 68.10 | 66.80 | 67.50 | 67.41 | 23.86 | 51,055 |   |  |