| 
                 
                    Closing price on 4/8/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    69.00 | 
                 
                
                    | High | 
                    69.30 | 
                 
                
                    | Low | 
                    68.30 | 
                     
                
                    | Volume | 
                    88,400 | 
                                 
                
                    | Split-adjusted Price | 
                    16.18 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NTP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/8/2016
             | 
            
                +0.10 / +0.14%
             |             
            
                69.00
             |           
            
                69.30
             |               
            
                68.30
             |                           
            
                69.10
             | 
            
                68.99
             |                     
            
                16.18
             |                                 
            
                88,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2016
             | 
            
                +0.10 / +0.15%
             |             
            
                68.90
             |           
            
                70.00
             |               
            
                68.00
             |                           
            
                69.00
             | 
            
                68.40
             |                     
            
                16.15
             |                                 
            
                30,756
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2016
             | 
            
                +2.90 / +4.39%
             |             
            
                66.80
             |           
            
                69.00
             |               
            
                66.80
             |                           
            
                68.90
             | 
            
                68.29
             |                     
            
                16.13
             |                                 
            
                48,886
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2016
             | 
            
                0.00 / 0.00%
             |             
            
                63.50
             |           
            
                66.70
             |               
            
                63.50
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                15.45
             |                                 
            
                25,271
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2016
             | 
            
                -0.10 / -0.15%
             |             
            
                66.00
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                66.00
             | 
            
                67.08
             |                     
            
                15.45
             |                                 
            
                21,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2016
             | 
            
                -1.40 / -2.07%
             |             
            
                66.00
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                66.10
             | 
            
                66.53
             |                     
            
                15.48
             |                                 
            
                48,635
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2016
             | 
            
                -1.60 / -2.32%
             |             
            
                68.70
             |           
            
                70.30
             |               
            
                67.00
             |                           
            
                67.50
             | 
            
                68.38
             |                     
            
                15.80
             |                                 
            
                139,675
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2016
             | 
            
                +1.40 / +2.07%
             |             
            
                67.00
             |           
            
                72.10
             |               
            
                66.10
             |                           
            
                69.10
             | 
            
                68.93
             |                     
            
                16.18
             |                                 
            
                102,249
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2016
             | 
            
                -1.20 / -1.74%
             |             
            
                69.00
             |           
            
                71.80
             |               
            
                67.70
             |                           
            
                67.70
             | 
            
                69.56
             |                     
            
                15.85
             |                                 
            
                193,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2016
             | 
            
                +6.20 / +9.89%
             |             
            
                63.00
             |           
            
                68.90
             |               
            
                62.60
             |                           
            
                68.90
             | 
            
                67.04
             |                     
            
                16.13
             |                                 
            
                147,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2016
             | 
            
                -0.30 / -0.48%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                60.50
             |                           
            
                62.70
             | 
            
                62.32
             |                     
            
                14.68
             |                                 
            
                44,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2016
             | 
            
                +1.20 / +1.94%
             |             
            
                61.00
             |           
            
                64.00
             |               
            
                60.20
             |                           
            
                63.00
             | 
            
                62.52
             |                     
            
                14.75
             |                                 
            
                92,994
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2016
             | 
            
                -0.20 / -0.32%
             |             
            
                61.50
             |           
            
                61.80
             |               
            
                60.90
             |                           
            
                61.80
             | 
            
                61.24
             |                     
            
                14.47
             |                                 
            
                34,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2016
             | 
            
                +1.70 / +2.82%
             |             
            
                61.00
             |           
            
                62.00
             |               
            
                60.50
             |                           
            
                62.00
             | 
            
                61.09
             |                     
            
                14.52
             |                                 
            
                50,788
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2016
             | 
            
                +2.30 / +3.97%
             |             
            
                58.00
             |           
            
                61.50
             |               
            
                57.80
             |                           
            
                60.30
             | 
            
                59.74
             |                     
            
                14.12
             |                                 
            
                87,466
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2016
             | 
            
                +1.30 / +2.29%
             |             
            
                57.50
             |           
            
                58.90
             |               
            
                57.50
             |                           
            
                58.00
             | 
            
                57.91
             |                     
            
                13.58
             |                                 
            
                36,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2016
             | 
            
                -0.30 / -0.53%
             |             
            
                57.10
             |           
            
                57.10
             |               
            
                56.70
             |                           
            
                56.70
             | 
            
                56.93
             |                     
            
                13.27
             |                                 
            
                13,950
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2016
             | 
            
                +0.10 / +0.18%
             |             
            
                57.40
             |           
            
                57.40
             |               
            
                56.70
             |                           
            
                57.00
             | 
            
                56.96
             |                     
            
                13.34
             |                                 
            
                14,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2016
             | 
            
                -0.90 / -1.56%
             |             
            
                57.60
             |           
            
                57.60
             |               
            
                56.80
             |                           
            
                56.90
             | 
            
                57.13
             |                     
            
                13.32
             |                                 
            
                21,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2016
             | 
            
                +0.20 / +0.35%
             |             
            
                57.60
             |           
            
                57.80
             |               
            
                57.20
             |                           
            
                57.80
             | 
            
                57.54
             |                     
            
                13.53
             |                                 
            
                7,736
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2016
             | 
            
                0.00 / 0.00%
             |             
            
                57.50
             |           
            
                58.00
             |               
            
                57.00
             |                           
            
                57.60
             | 
            
                57.63
             |                     
            
                13.49
             |                                 
            
                11,850
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2016
             | 
            
                -0.30 / -0.52%
             |             
            
                57.50
             |           
            
                57.90
             |               
            
                56.80
             |                           
            
                57.60
             | 
            
                57.90
             |                     
            
                13.49
             |                                 
            
                2,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2016
             | 
            
                +1.40 / +2.48%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                56.60
             |                           
            
                57.90
             | 
            
                57.63
             |                     
            
                13.56
             |                                 
            
                11,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2016
             | 
            
                -1.10 / -1.91%
             |             
            
                57.50
             |           
            
                57.80
             |               
            
                56.00
             |                           
            
                56.50
             | 
            
                56.99
             |                     
            
                13.23
             |                                 
            
                28,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2016
             | 
            
                -1.30 / -2.21%
             |             
            
                58.80
             |           
            
                58.90
             |               
            
                57.60
             |                           
            
                57.60
             | 
            
                58.50
             |                     
            
                13.49
             |                                 
            
                22,454
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2016
             | 
            
                -0.40 / -0.67%
             |             
            
                59.30
             |           
            
                59.50
             |               
            
                58.90
             |                           
            
                58.90
             | 
            
                59.25
             |                     
            
                13.79
             |                                 
            
                19,986
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2016
             | 
            
                +0.40 / +0.68%
             |             
            
                57.50
             |           
            
                59.30
             |               
            
                57.00
             |                           
            
                59.30
             | 
            
                58.72
             |                     
            
                13.88
             |                                 
            
                25,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2016
             | 
            
                +1.40 / +2.43%
             |             
            
                57.50
             |           
            
                58.90
             |               
            
                57.50
             |                           
            
                58.90
             | 
            
                58.37
             |                     
            
                13.79
             |                                 
            
                51,058
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2016
             | 
            
                +1.40 / +2.50%
             |             
            
                56.20
             |           
            
                57.70
             |               
            
                56.00
             |                           
            
                57.50
             | 
            
                56.78
             |                     
            
                13.46
             |                                 
            
                13,215
             |            
            
                 
             |                                       
         
    
        
            | 
                2/29/2016
             | 
            
                -0.30 / -0.53%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.00
             |                           
            
                56.10
             | 
            
                56.46
             |                     
            
                13.13
             |                                 
            
                8,885
             |  
            
                 
             |                                                              
             
    
         
    
    
 |