| 
                 
                    Closing price on 2/20/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    74.50 | 
                 
                
                    | High | 
                    74.60 | 
                 
                
                    | Low | 
                    74.00 | 
                     
                
                    | Volume | 
                    17,605 | 
                                 
                
                    | Split-adjusted Price | 
                    21.55 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NTP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/20/2017
             | 
            
                -0.40 / -0.54%
             |             
            
                74.50
             |           
            
                74.60
             |               
            
                74.00
             |                           
            
                74.10
             | 
            
                74.29
             |                     
            
                21.55
             |                                 
            
                17,605
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.50
             |           
            
                74.50
             |               
            
                74.30
             |                           
            
                74.50
             | 
            
                74.47
             |                     
            
                21.67
             |                                 
            
                18,683
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2017
             | 
            
                0.00 / 0.00%
             |             
            
                76.00
             |           
            
                76.80
             |               
            
                74.50
             |                           
            
                74.50
             | 
            
                75.55
             |                     
            
                21.67
             |                                 
            
                46,750
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.50
             |           
            
                75.00
             |               
            
                74.20
             |                           
            
                74.50
             | 
            
                74.51
             |                     
            
                21.67
             |                                 
            
                89,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.50
             |           
            
                75.00
             |               
            
                74.50
             |                           
            
                74.50
             | 
            
                74.88
             |                     
            
                21.67
             |                                 
            
                27,971
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.60
             |           
            
                74.90
             |               
            
                74.10
             |                           
            
                74.50
             | 
            
                74.45
             |                     
            
                21.67
             |                                 
            
                58,543
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                74.80
             |           
            
                75.50
             |               
            
                74.50
             |                           
            
                74.50
             | 
            
                74.71
             |                     
            
                21.67
             |                                 
            
                44,174
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2017
             | 
            
                -2.30 / -2.99%
             |             
            
                76.10
             |           
            
                76.80
             |               
            
                71.90
             |                           
            
                74.60
             | 
            
                74.82
             |                     
            
                21.70
             |                                 
            
                37,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2017
             | 
            
                +1.30 / +1.72%
             |             
            
                75.70
             |           
            
                76.90
             |               
            
                75.70
             |                           
            
                76.90
             | 
            
                76.03
             |                     
            
                22.37
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2017
             | 
            
                +0.60 / +0.80%
             |             
            
                76.00
             |           
            
                79.00
             |               
            
                74.50
             |                           
            
                75.60
             | 
            
                75.18
             |                     
            
                21.99
             |                                 
            
                46,911
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2017
             | 
            
                -1.00 / -1.32%
             |             
            
                76.10
             |           
            
                76.10
             |               
            
                74.60
             |                           
            
                75.00
             | 
            
                75.02
             |                     
            
                21.81
             |                                 
            
                16,910
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2017
             | 
            
                -1.20 / -1.55%
             |             
            
                77.20
             |           
            
                77.20
             |               
            
                76.00
             |                           
            
                76.00
             | 
            
                76.76
             |                     
            
                22.10
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2017
             | 
            
                -0.20 / -0.26%
             |             
            
                77.50
             |           
            
                77.50
             |               
            
                77.00
             |                           
            
                77.20
             | 
            
                77.16
             |                     
            
                22.45
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2017
             | 
            
                +1.20 / +1.57%
             |             
            
                76.20
             |           
            
                77.40
             |               
            
                76.00
             |                           
            
                77.40
             | 
            
                76.72
             |                     
            
                22.51
             |                                 
            
                4,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2017
             | 
            
                +0.20 / +0.26%
             |             
            
                68.40
             |           
            
                77.00
             |               
            
                68.40
             |                           
            
                76.20
             | 
            
                76.28
             |                     
            
                22.16
             |                                 
            
                8,750
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2017
             | 
            
                0.00 / 0.00%
             |             
            
                75.10
             |           
            
                76.40
             |               
            
                75.10
             |                           
            
                76.00
             | 
            
                75.76
             |                     
            
                22.10
             |                                 
            
                4,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2017
             | 
            
                -0.80 / -1.04%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                76.00
             |                           
            
                76.00
             | 
            
                76.86
             |                     
            
                22.10
             |                                 
            
                20,250
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2017
             | 
            
                -0.20 / -0.26%
             |             
            
                77.00
             |           
            
                77.10
             |               
            
                76.80
             |                           
            
                76.80
             | 
            
                76.99
             |                     
            
                22.34
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                77.00
             |           
            
                77.30
             |               
            
                77.00
             |                           
            
                77.00
             | 
            
                77.00
             |                     
            
                22.39
             |                                 
            
                10,302
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2017
             | 
            
                +0.10 / +0.13%
             |             
            
                77.20
             |           
            
                77.50
             |               
            
                77.00
             |                           
            
                77.10
             | 
            
                77.09
             |                     
            
                22.42
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2017
             | 
            
                -0.40 / -0.52%
             |             
            
                77.30
             |           
            
                77.30
             |               
            
                77.00
             |                           
            
                77.00
             | 
            
                77.25
             |                     
            
                22.39
             |                                 
            
                7,126
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2017
             | 
            
                +0.20 / +0.26%
             |             
            
                77.70
             |           
            
                77.90
             |               
            
                77.20
             |                           
            
                77.40
             | 
            
                77.20
             |                     
            
                22.51
             |                                 
            
                11,492
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2017
             | 
            
                +0.60 / +0.78%
             |             
            
                77.00
             |           
            
                77.50
             |               
            
                77.00
             |                           
            
                77.20
             | 
            
                77.26
             |                     
            
                22.45
             |                                 
            
                26,930
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2017
             | 
            
                -0.40 / -0.52%
             |             
            
                77.20
             |           
            
                77.20
             |               
            
                76.60
             |                           
            
                76.60
             | 
            
                77.05
             |                     
            
                22.28
             |                                 
            
                7,656
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                76.00
             |           
            
                77.40
             |               
            
                76.00
             |                           
            
                77.00
             | 
            
                77.22
             |                     
            
                22.39
             |                                 
            
                28,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2017
             | 
            
                -0.30 / -0.39%
             |             
            
                77.00
             |           
            
                77.90
             |               
            
                76.10
             |                           
            
                77.10
             | 
            
                76.83
             |                     
            
                22.42
             |                                 
            
                10,259
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                77.40
             |           
            
                77.50
             |               
            
                76.90
             |                           
            
                77.40
             | 
            
                77.13
             |                     
            
                22.51
             |                                 
            
                42,820
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2017
             | 
            
                -0.30 / -0.39%
             |             
            
                77.90
             |           
            
                78.00
             |               
            
                77.50
             |                           
            
                77.50
             | 
            
                77.77
             |                     
            
                22.54
             |                                 
            
                12,543
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2017
             | 
            
                +0.30 / +0.39%
             |             
            
                77.50
             |           
            
                77.90
             |               
            
                77.50
             |                           
            
                77.80
             | 
            
                77.61
             |                     
            
                22.63
             |                                 
            
                7,320
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                77.50
             |           
            
                78.30
             |               
            
                77.50
             |                           
            
                77.50
             | 
            
                77.63
             |                     
            
                22.54
             |                                 
            
                5,680
             |  
            
                 
             |                                                              
             
    
         
    
    
 |