| 
                 
                    Closing price on 6/16/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    79.50 | 
                 
                
                    | High | 
                    79.80 | 
                 
                
                    | Low | 
                    78.80 | 
                     
                
                    | Volume | 
                    29,380 | 
                                 
                
                    | Split-adjusted Price | 
                    29.97 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NNC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/16/2017
             | 
            
                +0.30 / +0.38%
             |             
            
                79.50
             |           
            
                79.80
             |               
            
                78.80
             |                           
            
                79.80
             | 
            
                79.41
             |                     
            
                29.97
             |                                 
            
                29,380
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2017
             | 
            
                +0.10 / +0.13%
             |             
            
                78.80
             |           
            
                79.60
             |               
            
                78.80
             |                           
            
                79.50
             | 
            
                79.37
             |                     
            
                29.86
             |                                 
            
                14,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2017
             | 
            
                +1.30 / +1.66%
             |             
            
                78.10
             |           
            
                79.40
             |               
            
                78.10
             |                           
            
                79.40
             | 
            
                79.21
             |                     
            
                29.82
             |                                 
            
                19,870
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2017
             | 
            
                -1.10 / -1.39%
             |             
            
                79.00
             |           
            
                79.40
             |               
            
                78.10
             |                           
            
                78.10
             | 
            
                78.25
             |                     
            
                29.34
             |                                 
            
                14,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2017
             | 
            
                -0.20 / -0.25%
             |             
            
                79.00
             |           
            
                79.20
             |               
            
                78.10
             |                           
            
                79.20
             | 
            
                78.80
             |                     
            
                29.75
             |                                 
            
                10,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2017
             | 
            
                -0.50 / -0.63%
             |             
            
                79.40
             |           
            
                79.70
             |               
            
                79.00
             |                           
            
                79.40
             | 
            
                79.11
             |                     
            
                29.82
             |                                 
            
                10,960
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2017
             | 
            
                +0.40 / +0.50%
             |             
            
                79.50
             |           
            
                79.90
             |               
            
                78.60
             |                           
            
                79.90
             | 
            
                79.61
             |                     
            
                30.01
             |                                 
            
                23,490
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2017
             | 
            
                -0.20 / -0.25%
             |             
            
                79.70
             |           
            
                79.70
             |               
            
                78.60
             |                           
            
                79.50
             | 
            
                79.23
             |                     
            
                29.86
             |                                 
            
                23,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2017
             | 
            
                -0.30 / -0.38%
             |             
            
                79.00
             |           
            
                80.00
             |               
            
                79.00
             |                           
            
                79.70
             | 
            
                79.21
             |                     
            
                29.94
             |                                 
            
                14,190
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2017
             | 
            
                +0.70 / +0.88%
             |             
            
                78.70
             |           
            
                80.00
             |               
            
                78.50
             |                           
            
                80.00
             | 
            
                79.02
             |                     
            
                30.05
             |                                 
            
                18,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2017
             | 
            
                +0.80 / +1.02%
             |             
            
                79.30
             |           
            
                79.30
             |               
            
                78.50
             |                           
            
                79.30
             | 
            
                78.79
             |                     
            
                29.79
             |                                 
            
                9,290
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2017
             | 
            
                -1.50 / -1.88%
             |             
            
                79.50
             |           
            
                80.80
             |               
            
                78.50
             |                           
            
                78.50
             | 
            
                79.04
             |                     
            
                29.49
             |                                 
            
                27,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2017
             | 
            
                -0.10 / -0.12%
             |             
            
                80.00
             |           
            
                80.10
             |               
            
                79.10
             |                           
            
                80.00
             | 
            
                79.79
             |                     
            
                30.05
             |                                 
            
                11,530
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2017
             | 
            
                -0.90 / -1.11%
             |             
            
                81.00
             |           
            
                81.00
             |               
            
                79.00
             |                           
            
                80.10
             | 
            
                80.04
             |                     
            
                30.09
             |                                 
            
                29,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2017
             | 
            
                +1.00 / +1.25%
             |             
            
                80.00
             |           
            
                81.90
             |               
            
                80.00
             |                           
            
                81.00
             | 
            
                80.78
             |                     
            
                30.43
             |                                 
            
                32,990
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2017
             | 
            
                +1.00 / +1.27%
             |             
            
                79.00
             |           
            
                80.00
             |               
            
                78.40
             |                           
            
                80.00
             | 
            
                79.46
             |                     
            
                30.05
             |                                 
            
                54,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2017
             | 
            
                +1.10 / +1.41%
             |             
            
                77.70
             |           
            
                79.50
             |               
            
                77.70
             |                           
            
                79.00
             | 
            
                78.05
             |                     
            
                29.67
             |                                 
            
                34,440
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2017
             | 
            
                -0.90 / -1.14%
             |             
            
                78.80
             |           
            
                78.80
             |               
            
                77.60
             |                           
            
                77.90
             | 
            
                77.85
             |                     
            
                29.26
             |                                 
            
                7,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2017
             | 
            
                -0.20 / -0.25%
             |             
            
                78.90
             |           
            
                78.90
             |               
            
                77.90
             |                           
            
                78.80
             | 
            
                78.26
             |                     
            
                29.60
             |                                 
            
                18,860
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2017
             | 
            
                -1.00 / -1.25%
             |             
            
                79.00
             |           
            
                79.90
             |               
            
                78.00
             |                           
            
                79.00
             | 
            
                78.21
             |                     
            
                29.67
             |                                 
            
                8,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2017
             | 
            
                +1.00 / +1.27%
             |             
            
                78.10
             |           
            
                80.00
             |               
            
                77.00
             |                           
            
                80.00
             | 
            
                78.89
             |                     
            
                30.05
             |                                 
            
                49,160
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2017
             | 
            
                -0.20 / -0.25%
             |             
            
                79.00
             |           
            
                79.00
             |               
            
                78.00
             |                           
            
                79.00
             | 
            
                78.49
             |                     
            
                29.67
             |                                 
            
                10,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2017
             | 
            
                0.00 / 0.00%
             |             
            
                79.00
             |           
            
                79.60
             |               
            
                78.10
             |                           
            
                79.20
             | 
            
                78.89
             |                     
            
                29.75
             |                                 
            
                9,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2017
             | 
            
                -0.50 / -0.63%
             |             
            
                79.20
             |           
            
                80.00
             |               
            
                78.60
             |                           
            
                79.20
             | 
            
                79.52
             |                     
            
                29.75
             |                                 
            
                14,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2017
             | 
            
                -0.30 / -0.38%
             |             
            
                80.50
             |           
            
                81.00
             |               
            
                79.00
             |                           
            
                79.70
             | 
            
                79.36
             |                     
            
                29.94
             |                                 
            
                21,180
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2017
             | 
            
                +2.00 / +2.56%
             |             
            
                78.00
             |           
            
                80.00
             |               
            
                77.00
             |                           
            
                80.00
             | 
            
                78.71
             |                     
            
                30.05
             |                                 
            
                65,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                78.00
             |           
            
                78.00
             |               
            
                77.40
             |                           
            
                78.00
             | 
            
                77.53
             |                     
            
                29.30
             |                                 
            
                12,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2017
             | 
            
                +1.20 / +1.56%
             |             
            
                77.50
             |           
            
                78.50
             |               
            
                76.90
             |                           
            
                78.10
             | 
            
                77.32
             |                     
            
                29.34
             |                                 
            
                10,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2017
             | 
            
                -1.60 / -2.04%
             |             
            
                78.50
             |           
            
                78.50
             |               
            
                76.90
             |                           
            
                76.90
             | 
            
                77.22
             |                     
            
                28.89
             |                                 
            
                10,120
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                -1.00 / -1.26%
             |             
            
                79.40
             |           
            
                79.40
             |               
            
                76.90
             |                           
            
                78.50
             | 
            
                77.67
             |                     
            
                29.49
             |                                 
            
                13,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |