| 
                 
                    Closing price on 10/17/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    56.00 | 
                 
                
                    | High | 
                    57.00 | 
                 
                
                    | Low | 
                    55.80 | 
                     
                
                    | Volume | 
                    5,960 | 
                                 
                
                    | Split-adjusted Price | 
                    29.73 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NNC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/17/2017
             | 
            
                +0.30 / +0.54%
             |             
            
                56.00
             |           
            
                57.00
             |               
            
                55.80
             |                           
            
                56.30
             | 
            
                56.21
             |                     
            
                29.73
             |                                 
            
                5,960
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2017
             | 
            
                -2.80 / -4.76%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                55.00
             |                           
            
                56.00
             | 
            
                55.72
             |                     
            
                29.57
             |                                 
            
                18,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2017
             | 
            
                +3.80 / +6.91%
             |             
            
                54.90
             |           
            
                58.80
             |               
            
                54.50
             |                           
            
                58.80
             | 
            
                56.18
             |                     
            
                31.05
             |                                 
            
                62,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                54.70
             |                           
            
                55.00
             | 
            
                54.92
             |                     
            
                29.04
             |                                 
            
                21,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2017
             | 
            
                -3.20 / -5.50%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.12
             |                     
            
                29.04
             |                                 
            
                66,980
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2017
             | 
            
                -1.00 / -1.69%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.10
             |                           
            
                58.20
             | 
            
                58.42
             |                     
            
                29.15
             |                                 
            
                76,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2017
             | 
            
                +0.20 / +0.34%
             |             
            
                59.00
             |           
            
                59.20
             |               
            
                58.00
             |                           
            
                59.20
             | 
            
                58.51
             |                     
            
                29.65
             |                                 
            
                118,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.30
             |                           
            
                59.00
             | 
            
                58.77
             |                     
            
                29.55
             |                                 
            
                17,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2017
             | 
            
                -0.30 / -0.51%
             |             
            
                59.30
             |           
            
                59.30
             |               
            
                58.60
             |                           
            
                59.00
             | 
            
                58.90
             |                     
            
                29.55
             |                                 
            
                9,610
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2017
             | 
            
                +0.40 / +0.68%
             |             
            
                58.90
             |           
            
                59.30
             |               
            
                57.80
             |                           
            
                59.30
             | 
            
                58.54
             |                     
            
                29.70
             |                                 
            
                28,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2017
             | 
            
                +0.90 / +1.55%
             |             
            
                58.00
             |           
            
                59.00
             |               
            
                57.80
             |                           
            
                58.90
             | 
            
                58.09
             |                     
            
                29.50
             |                                 
            
                41,970
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2017
             | 
            
                -0.40 / -0.68%
             |             
            
                58.40
             |           
            
                58.50
             |               
            
                57.80
             |                           
            
                58.00
             | 
            
                58.01
             |                     
            
                29.05
             |                                 
            
                15,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2017
             | 
            
                0.00 / 0.00%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                57.80
             |                           
            
                58.40
             | 
            
                58.14
             |                     
            
                29.25
             |                                 
            
                57,190
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2017
             | 
            
                +0.30 / +0.52%
             |             
            
                58.80
             |           
            
                58.80
             |               
            
                57.70
             |                           
            
                58.40
             | 
            
                58.33
             |                     
            
                29.25
             |                                 
            
                115,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2017
             | 
            
                +2.60 / +4.68%
             |             
            
                57.40
             |           
            
                58.20
             |               
            
                57.00
             |                           
            
                58.10
             | 
            
                57.79
             |                     
            
                29.10
             |                                 
            
                131,780
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2017
             | 
            
                +0.20 / +0.36%
             |             
            
                55.30
             |           
            
                55.50
             |               
            
                54.70
             |                           
            
                55.50
             | 
            
                55.04
             |                     
            
                27.80
             |                                 
            
                70,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2017
             | 
            
                -0.20 / -0.36%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                54.50
             |                           
            
                55.30
             | 
            
                55.01
             |                     
            
                27.70
             |                                 
            
                54,390
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2017
             | 
            
                +1.20 / +2.21%
             |             
            
                55.40
             |           
            
                55.50
             |               
            
                54.20
             |                           
            
                55.50
             | 
            
                54.56
             |                     
            
                27.80
             |                                 
            
                50,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2017
             | 
            
                -0.20 / -0.37%
             |             
            
                54.50
             |           
            
                54.60
             |               
            
                54.30
             |                           
            
                54.30
             | 
            
                54.45
             |                     
            
                27.20
             |                                 
            
                29,240
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                54.50
             |           
            
                54.80
             |               
            
                54.20
             |                           
            
                54.50
             | 
            
                54.56
             |                     
            
                27.30
             |                                 
            
                39,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2017
             | 
            
                +0.30 / +0.55%
             |             
            
                54.60
             |           
            
                54.90
             |               
            
                54.10
             |                           
            
                54.50
             | 
            
                54.31
             |                     
            
                27.30
             |                                 
            
                13,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2017
             | 
            
                -0.80 / -1.45%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                54.10
             |                           
            
                54.20
             | 
            
                54.28
             |                     
            
                27.15
             |                                 
            
                13,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2017
             | 
            
                +0.60 / +1.10%
             |             
            
                54.10
             |           
            
                55.00
             |               
            
                53.80
             |                           
            
                55.00
             | 
            
                54.18
             |                     
            
                27.55
             |                                 
            
                30,840
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2017
             | 
            
                -0.30 / -0.55%
             |             
            
                54.50
             |           
            
                54.50
             |               
            
                54.10
             |                           
            
                54.40
             | 
            
                54.30
             |                     
            
                27.25
             |                                 
            
                9,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2017
             | 
            
                0.00 / 0.00%
             |             
            
                54.20
             |           
            
                54.70
             |               
            
                54.10
             |                           
            
                54.70
             | 
            
                54.26
             |                     
            
                27.40
             |                                 
            
                16,550
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2017
             | 
            
                -0.30 / -0.55%
             |             
            
                54.50
             |           
            
                55.00
             |               
            
                53.50
             |                           
            
                54.70
             | 
            
                54.13
             |                     
            
                27.40
             |                                 
            
                9,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                54.50
             |           
            
                55.00
             |               
            
                54.20
             |                           
            
                55.00
             | 
            
                54.62
             |                     
            
                27.55
             |                                 
            
                7,360
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2017
             | 
            
                +0.20 / +0.36%
             |             
            
                54.50
             |           
            
                55.00
             |               
            
                54.20
             |                           
            
                55.00
             | 
            
                54.58
             |                     
            
                27.55
             |                                 
            
                7,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2017
             | 
            
                -0.20 / -0.36%
             |             
            
                55.00
             |           
            
                55.10
             |               
            
                54.10
             |                           
            
                54.80
             | 
            
                54.69
             |                     
            
                27.45
             |                                 
            
                26,750
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2017
             | 
            
                -0.20 / -0.36%
             |             
            
                55.10
             |           
            
                55.20
             |               
            
                54.60
             |                           
            
                55.00
             | 
            
                54.96
             |                     
            
                27.55
             |                                 
            
                17,630
             |  
            
                 
             |                                                              
             
    
         
    
    
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