| 
                 
                    Closing price on 11/3/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    30.00 | 
                 
                
                    | High | 
                    30.50 | 
                 
                
                    | Low | 
                    29.95 | 
                     
                
                    | Volume | 
                    1,184,110 | 
                                 
                
                    | Split-adjusted Price | 
                    14.69 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NT2 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/3/2017
             | 
            
                +0.10 / +0.33%
             |             
            
                30.00
             |           
            
                30.50
             |               
            
                29.95
             |                           
            
                30.10
             | 
            
                30.00
             |                     
            
                14.69
             |                                 
            
                1,184,110
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2017
             | 
            
                0.00 / 0.00%
             |             
            
                30.20
             |           
            
                30.30
             |               
            
                29.90
             |                           
            
                30.00
             | 
            
                30.03
             |                     
            
                14.64
             |                                 
            
                360,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/1/2017
             | 
            
                +0.05 / +0.17%
             |             
            
                29.95
             |           
            
                30.55
             |               
            
                29.90
             |                           
            
                30.00
             | 
            
                30.15
             |                     
            
                14.64
             |                                 
            
                349,680
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2017
             | 
            
                0.00 / 0.00%
             |             
            
                29.30
             |           
            
                29.95
             |               
            
                29.20
             |                           
            
                29.95
             | 
            
                29.67
             |                     
            
                14.62
             |                                 
            
                421,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2017
             | 
            
                -1.05 / -3.39%
             |             
            
                30.20
             |           
            
                30.30
             |               
            
                29.50
             |                           
            
                29.95
             | 
            
                30.00
             |                     
            
                14.62
             |                                 
            
                611,040
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2017
             | 
            
                +1.30 / +4.38%
             |             
            
                29.70
             |           
            
                31.00
             |               
            
                29.70
             |                           
            
                31.00
             | 
            
                30.66
             |                     
            
                15.13
             |                                 
            
                618,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2017
             | 
            
                -0.05 / -0.17%
             |             
            
                29.55
             |           
            
                29.80
             |               
            
                29.10
             |                           
            
                29.70
             | 
            
                29.56
             |                     
            
                14.50
             |                                 
            
                135,540
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2017
             | 
            
                +0.35 / +1.19%
             |             
            
                29.50
             |           
            
                30.10
             |               
            
                29.40
             |                           
            
                29.75
             | 
            
                29.88
             |                     
            
                14.52
             |                                 
            
                363,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2017
             | 
            
                +0.90 / +3.16%
             |             
            
                28.60
             |           
            
                29.50
             |               
            
                28.30
             |                           
            
                29.40
             | 
            
                29.06
             |                     
            
                14.35
             |                                 
            
                451,880
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2017
             | 
            
                +0.15 / +0.53%
             |             
            
                27.90
             |           
            
                28.50
             |               
            
                27.90
             |                           
            
                28.50
             | 
            
                28.34
             |                     
            
                13.91
             |                                 
            
                417,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2017
             | 
            
                -0.25 / -0.87%
             |             
            
                28.30
             |           
            
                28.40
             |               
            
                28.20
             |                           
            
                28.35
             | 
            
                28.30
             |                     
            
                13.84
             |                                 
            
                418,530
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2017
             | 
            
                +0.30 / +1.06%
             |             
            
                28.50
             |           
            
                28.70
             |               
            
                28.20
             |                           
            
                28.60
             | 
            
                28.46
             |                     
            
                13.96
             |                                 
            
                469,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2017
             | 
            
                -0.35 / -1.22%
             |             
            
                28.65
             |           
            
                28.70
             |               
            
                28.30
             |                           
            
                28.30
             | 
            
                28.45
             |                     
            
                13.81
             |                                 
            
                642,440
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2017
             | 
            
                -0.55 / -1.88%
             |             
            
                29.10
             |           
            
                29.10
             |               
            
                28.50
             |                           
            
                28.65
             | 
            
                28.81
             |                     
            
                13.98
             |                                 
            
                574,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2017
             | 
            
                -0.05 / -0.17%
             |             
            
                29.00
             |           
            
                29.30
             |               
            
                28.60
             |                           
            
                29.20
             | 
            
                29.12
             |                     
            
                14.25
             |                                 
            
                547,680
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2017
             | 
            
                +0.25 / +0.86%
             |             
            
                29.00
             |           
            
                29.40
             |               
            
                28.80
             |                           
            
                29.25
             | 
            
                29.19
             |                     
            
                14.28
             |                                 
            
                680,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2017
             | 
            
                -0.20 / -0.68%
             |             
            
                29.10
             |           
            
                29.35
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.05
             |                     
            
                14.15
             |                                 
            
                603,070
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2017
             | 
            
                +0.95 / +3.36%
             |             
            
                28.10
             |           
            
                29.45
             |               
            
                28.00
             |                           
            
                29.20
             | 
            
                28.81
             |                     
            
                14.25
             |                                 
            
                1,168,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2017
             | 
            
                +0.50 / +1.80%
             |             
            
                27.75
             |           
            
                28.45
             |               
            
                27.70
             |                           
            
                28.25
             | 
            
                28.19
             |                     
            
                13.79
             |                                 
            
                741,710
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2017
             | 
            
                -0.55 / -1.94%
             |             
            
                27.80
             |           
            
                28.00
             |               
            
                27.70
             |                           
            
                27.75
             | 
            
                27.85
             |                     
            
                13.54
             |                                 
            
                538,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2017
             | 
            
                +0.20 / +0.71%
             |             
            
                28.20
             |           
            
                28.85
             |               
            
                27.90
             |                           
            
                28.30
             | 
            
                28.38
             |                     
            
                13.32
             |                                 
            
                670,260
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2017
             | 
            
                +1.30 / +4.85%
             |             
            
                27.00
             |           
            
                28.20
             |               
            
                27.00
             |                           
            
                28.10
             | 
            
                27.94
             |                     
            
                13.23
             |                                 
            
                1,179,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2017
             | 
            
                +0.40 / +1.52%
             |             
            
                26.55
             |           
            
                26.80
             |               
            
                26.40
             |                           
            
                26.80
             | 
            
                26.52
             |                     
            
                12.62
             |                                 
            
                447,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2017
             | 
            
                -0.20 / -0.75%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.25
             |                           
            
                26.40
             | 
            
                26.37
             |                     
            
                12.43
             |                                 
            
                469,032
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2017
             | 
            
                +0.05 / +0.19%
             |             
            
                26.60
             |           
            
                26.80
             |               
            
                26.40
             |                           
            
                26.60
             | 
            
                26.53
             |                     
            
                12.52
             |                                 
            
                217,652
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2017
             | 
            
                +0.05 / +0.19%
             |             
            
                26.30
             |           
            
                26.70
             |               
            
                26.30
             |                           
            
                26.55
             | 
            
                26.52
             |                     
            
                12.50
             |                                 
            
                158,492
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2017
             | 
            
                -0.15 / -0.56%
             |             
            
                26.65
             |           
            
                26.70
             |               
            
                26.30
             |                           
            
                26.50
             | 
            
                26.60
             |                     
            
                12.48
             |                                 
            
                217,352
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2017
             | 
            
                +0.45 / +1.72%
             |             
            
                26.30
             |           
            
                26.65
             |               
            
                26.10
             |                           
            
                26.65
             | 
            
                26.46
             |                     
            
                12.55
             |                                 
            
                350,622
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2017
             | 
            
                +0.30 / +1.16%
             |             
            
                26.10
             |           
            
                26.20
             |               
            
                25.80
             |                           
            
                26.20
             | 
            
                26.01
             |                     
            
                12.34
             |                                 
            
                121,582
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                25.90
             |           
            
                25.95
             |               
            
                25.85
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                12.19
             |                                 
            
                145,932
             |  
            
                 
             |                                                              
             
    
         
    
    
 |