| 
                 
                    Closing price on 2/27/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    67.60 | 
                 
                
                    | High | 
                    68.60 | 
                 
                
                    | Low | 
                    66.90 | 
                     
                
                    | Volume | 
                    40,910 | 
                                 
                
                    | Split-adjusted Price | 
                    24.25 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NTP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                1/26/2018
             | 
            
                -1.00 / -1.45%
             |             
            
                69.50
             |           
            
                69.90
             |               
            
                67.50
             |                           
            
                68.00
             | 
            
                68.32
             |                     
            
                24.04
             |                                 
            
                71,654
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2018
             | 
            
                -1.00 / -1.43%
             |             
            
                71.00
             |           
            
                73.00
             |               
            
                68.70
             |                           
            
                69.00
             | 
            
                70.44
             |                     
            
                24.39
             |                                 
            
                123,534
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                70.10
             |           
            
                71.10
             |               
            
                69.50
             |                           
            
                70.00
             | 
            
                70.33
             |                     
            
                24.75
             |                                 
            
                65,715
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2018
             | 
            
                +0.70 / +1.01%
             |             
            
                71.00
             |           
            
                71.30
             |               
            
                69.40
             |                           
            
                70.00
             | 
            
                70.24
             |                     
            
                24.75
             |                                 
            
                68,333
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2018
             | 
            
                +1.60 / +2.36%
             |             
            
                68.60
             |           
            
                71.00
             |               
            
                67.50
             |                           
            
                69.30
             | 
            
                68.90
             |                     
            
                24.50
             |                                 
            
                129,259
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2018
             | 
            
                -0.30 / -0.44%
             |             
            
                68.90
             |           
            
                69.30
             |               
            
                67.50
             |                           
            
                67.70
             | 
            
                67.76
             |                     
            
                23.94
             |                                 
            
                58,168
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2018
             | 
            
                0.00 / 0.00%
             |             
            
                67.00
             |           
            
                69.00
             |               
            
                67.00
             |                           
            
                68.00
             | 
            
                67.71
             |                     
            
                24.04
             |                                 
            
                27,134
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2018
             | 
            
                -0.90 / -1.31%
             |             
            
                69.00
             |           
            
                73.00
             |               
            
                68.00
             |                           
            
                68.00
             | 
            
                69.79
             |                     
            
                24.04
             |                                 
            
                50,035
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2018
             | 
            
                -0.10 / -0.14%
             |             
            
                69.00
             |           
            
                70.50
             |               
            
                68.00
             |                           
            
                68.90
             | 
            
                68.82
             |                     
            
                24.36
             |                                 
            
                77,651
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2018
             | 
            
                +0.20 / +0.29%
             |             
            
                67.60
             |           
            
                73.00
             |               
            
                67.00
             |                           
            
                69.00
             | 
            
                70.93
             |                     
            
                24.39
             |                                 
            
                149,570
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2018
             | 
            
                -0.20 / -0.29%
             |             
            
                69.20
             |           
            
                69.20
             |               
            
                66.60
             |                           
            
                68.80
             | 
            
                67.62
             |                     
            
                24.32
             |                                 
            
                58,751
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2018
             | 
            
                +0.70 / +1.02%
             |             
            
                68.90
             |           
            
                69.50
             |               
            
                68.40
             |                           
            
                69.00
             | 
            
                69.07
             |                     
            
                24.39
             |                                 
            
                67,321
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2018
             | 
            
                +2.00 / +3.02%
             |             
            
                66.30
             |           
            
                68.30
             |               
            
                66.30
             |                           
            
                68.30
             | 
            
                67.46
             |                     
            
                24.15
             |                                 
            
                109,467
             |  
            
                 
             |                                                              
             
    
         
    
    
 |