| 
                 
                    Closing price on 7/3/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    28.60 | 
                 
                
                    | High | 
                    29.10 | 
                 
                
                    | Low | 
                    28.60 | 
                     
                
                    | Volume | 
                    591,360 | 
                                 
                
                    | Split-adjusted Price | 
                    13.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NT2 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/3/2017
             | 
            
                +0.55 / +1.93%
             |             
            
                28.60
             |           
            
                29.10
             |               
            
                28.60
             |                           
            
                29.10
             | 
            
                28.70
             |                     
            
                13.70
             |                                 
            
                591,360
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2017
             | 
            
                +0.05 / +0.18%
             |             
            
                28.50
             |           
            
                28.75
             |               
            
                28.50
             |                           
            
                28.55
             | 
            
                28.58
             |                     
            
                13.44
             |                                 
            
                327,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2017
             | 
            
                -0.30 / -1.04%
             |             
            
                28.80
             |           
            
                29.00
             |               
            
                28.50
             |                           
            
                28.50
             | 
            
                28.60
             |                     
            
                13.42
             |                                 
            
                434,930
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2017
             | 
            
                -0.20 / -0.69%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.75
             |                           
            
                28.80
             | 
            
                28.83
             |                     
            
                13.56
             |                                 
            
                379,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                28.85
             |           
            
                29.15
             |               
            
                28.85
             |                           
            
                29.00
             | 
            
                28.94
             |                     
            
                13.65
             |                                 
            
                411,780
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2017
             | 
            
                -0.30 / -1.02%
             |             
            
                29.30
             |           
            
                29.40
             |               
            
                28.75
             |                           
            
                29.00
             | 
            
                29.04
             |                     
            
                13.65
             |                                 
            
                728,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2017
             | 
            
                -0.20 / -0.68%
             |             
            
                29.25
             |           
            
                29.50
             |               
            
                29.00
             |                           
            
                29.30
             | 
            
                29.23
             |                     
            
                13.79
             |                                 
            
                452,120
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2017
             | 
            
                0.00 / 0.00%
             |             
            
                29.50
             |           
            
                29.70
             |               
            
                29.45
             |                           
            
                29.50
             | 
            
                29.52
             |                     
            
                13.89
             |                                 
            
                771,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2017
             | 
            
                -0.20 / -0.67%
             |             
            
                29.40
             |           
            
                29.70
             |               
            
                29.30
             |                           
            
                29.50
             | 
            
                29.47
             |                     
            
                13.89
             |                                 
            
                1,032,290
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2017
             | 
            
                +0.50 / +1.71%
             |             
            
                29.45
             |           
            
                29.75
             |               
            
                29.45
             |                           
            
                29.70
             | 
            
                29.67
             |                     
            
                13.98
             |                                 
            
                703,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2017
             | 
            
                +0.60 / +2.10%
             |             
            
                29.10
             |           
            
                29.70
             |               
            
                28.75
             |                           
            
                29.20
             | 
            
                29.16
             |                     
            
                13.75
             |                                 
            
                822,370
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2017
             | 
            
                -0.30 / -1.04%
             |             
            
                28.80
             |           
            
                28.85
             |               
            
                28.50
             |                           
            
                28.60
             | 
            
                28.61
             |                     
            
                13.47
             |                                 
            
                3,667,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2017
             | 
            
                -0.15 / -0.52%
             |             
            
                29.05
             |           
            
                29.10
             |               
            
                28.85
             |                           
            
                28.90
             | 
            
                28.98
             |                     
            
                13.61
             |                                 
            
                307,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2017
             | 
            
                +0.05 / +0.17%
             |             
            
                29.20
             |           
            
                29.40
             |               
            
                29.00
             |                           
            
                29.05
             | 
            
                29.17
             |                     
            
                13.68
             |                                 
            
                553,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2017
             | 
            
                +0.90 / +3.20%
             |             
            
                28.00
             |           
            
                29.10
             |               
            
                28.00
             |                           
            
                29.00
             | 
            
                28.87
             |                     
            
                13.65
             |                                 
            
                518,340
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2017
             | 
            
                -0.60 / -2.09%
             |             
            
                28.50
             |           
            
                28.65
             |               
            
                27.90
             |                           
            
                28.10
             | 
            
                28.25
             |                     
            
                13.23
             |                                 
            
                762,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2017
             | 
            
                -0.30 / -1.03%
             |             
            
                28.70
             |           
            
                29.00
             |               
            
                28.65
             |                           
            
                28.70
             | 
            
                28.77
             |                     
            
                13.51
             |                                 
            
                479,640
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2017
             | 
            
                -0.15 / -0.51%
             |             
            
                29.00
             |           
            
                29.25
             |               
            
                28.90
             |                           
            
                29.00
             | 
            
                29.10
             |                     
            
                13.65
             |                                 
            
                504,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2017
             | 
            
                +0.05 / +0.17%
             |             
            
                29.35
             |           
            
                29.35
             |               
            
                29.00
             |                           
            
                29.15
             | 
            
                29.08
             |                     
            
                13.72
             |                                 
            
                510,280
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2017
             | 
            
                +0.25 / +0.87%
             |             
            
                28.80
             |           
            
                29.45
             |               
            
                28.70
             |                           
            
                29.10
             | 
            
                29.19
             |                     
            
                13.70
             |                                 
            
                839,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2017
             | 
            
                +0.30 / +1.05%
             |             
            
                28.50
             |           
            
                28.90
             |               
            
                28.25
             |                           
            
                28.85
             | 
            
                28.67
             |                     
            
                13.58
             |                                 
            
                596,690
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2017
             | 
            
                -0.15 / -0.52%
             |             
            
                28.70
             |           
            
                28.90
             |               
            
                27.95
             |                           
            
                28.55
             | 
            
                28.42
             |                     
            
                13.44
             |                                 
            
                988,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2017
             | 
            
                +1.05 / +3.80%
             |             
            
                27.65
             |           
            
                29.20
             |               
            
                27.65
             |                           
            
                28.70
             | 
            
                28.64
             |                     
            
                13.51
             |                                 
            
                945,390
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2017
             | 
            
                0.00 / 0.00%
             |             
            
                27.65
             |           
            
                27.70
             |               
            
                27.60
             |                           
            
                27.65
             | 
            
                27.64
             |                     
            
                13.02
             |                                 
            
                669,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2017
             | 
            
                0.00 / 0.00%
             |             
            
                27.70
             |           
            
                27.75
             |               
            
                27.60
             |                           
            
                27.65
             | 
            
                27.66
             |                     
            
                13.02
             |                                 
            
                437,750
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2017
             | 
            
                +0.05 / +0.18%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                27.60
             |                           
            
                27.65
             | 
            
                27.71
             |                     
            
                13.02
             |                                 
            
                319,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2017
             | 
            
                -0.40 / -1.43%
             |             
            
                28.00
             |           
            
                28.10
             |               
            
                27.55
             |                           
            
                27.60
             | 
            
                27.73
             |                     
            
                12.99
             |                                 
            
                405,370
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2017
             | 
            
                -0.40 / -1.41%
             |             
            
                28.40
             |           
            
                28.50
             |               
            
                28.00
             |                           
            
                28.00
             | 
            
                28.22
             |                     
            
                13.18
             |                                 
            
                712,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2017
             | 
            
                -1.45 / -4.86%
             |             
            
                28.40
             |           
            
                28.50
             |               
            
                28.30
             |                           
            
                28.40
             | 
            
                28.40
             |                     
            
                13.37
             |                                 
            
                354,860
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2017
             | 
            
                +0.05 / +0.17%
             |             
            
                29.80
             |           
            
                29.95
             |               
            
                29.75
             |                           
            
                29.85
             | 
            
                29.83
             |                     
            
                13.30
             |                                 
            
                916,190
             |  
            
                 
             |                                                              
             
    
         
    
    
 |