| 
                 
                    Closing price on 2/13/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    71.00 | 
                 
                
                    | High | 
                    71.00 | 
                 
                
                    | Low | 
                    70.00 | 
                     
                
                    | Volume | 
                    45,670 | 
                                 
                
                    | Split-adjusted Price | 
                    25.42 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NNC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/13/2017
             | 
            
                -0.60 / -0.85%
             |             
            
                71.00
             |           
            
                71.00
             |               
            
                70.00
             |                           
            
                70.40
             | 
            
                70.35
             |                     
            
                25.42
             |                                 
            
                45,670
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2017
             | 
            
                -0.80 / -1.11%
             |             
            
                71.80
             |           
            
                71.80
             |               
            
                70.70
             |                           
            
                71.00
             | 
            
                71.01
             |                     
            
                25.64
             |                                 
            
                21,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2017
             | 
            
                -1.00 / -1.37%
             |             
            
                72.80
             |           
            
                72.80
             |               
            
                70.20
             |                           
            
                71.80
             | 
            
                71.22
             |                     
            
                25.93
             |                                 
            
                22,030
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2017
             | 
            
                +2.60 / +3.70%
             |             
            
                70.00
             |           
            
                72.80
             |               
            
                69.60
             |                           
            
                72.80
             | 
            
                71.00
             |                     
            
                26.29
             |                                 
            
                27,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2017
             | 
            
                -0.30 / -0.43%
             |             
            
                70.50
             |           
            
                71.00
             |               
            
                69.70
             |                           
            
                70.20
             | 
            
                70.13
             |                     
            
                25.35
             |                                 
            
                38,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2017
             | 
            
                -1.00 / -1.40%
             |             
            
                72.00
             |           
            
                72.00
             |               
            
                70.40
             |                           
            
                70.50
             | 
            
                71.03
             |                     
            
                25.46
             |                                 
            
                21,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/3/2017
             | 
            
                -0.30 / -0.42%
             |             
            
                72.00
             |           
            
                72.50
             |               
            
                71.50
             |                           
            
                71.50
             | 
            
                71.92
             |                     
            
                25.82
             |                                 
            
                68,950
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2017
             | 
            
                -0.70 / -0.97%
             |             
            
                72.50
             |           
            
                72.70
             |               
            
                71.80
             |                           
            
                71.80
             | 
            
                71.97
             |                     
            
                25.93
             |                                 
            
                14,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2017
             | 
            
                +1.50 / +2.11%
             |             
            
                72.00
             |           
            
                72.50
             |               
            
                71.50
             |                           
            
                72.50
             | 
            
                72.18
             |                     
            
                26.18
             |                                 
            
                13,730
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2017
             | 
            
                -1.60 / -2.20%
             |             
            
                72.60
             |           
            
                72.60
             |               
            
                71.00
             |                           
            
                71.00
             | 
            
                71.64
             |                     
            
                25.64
             |                                 
            
                31,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2017
             | 
            
                0.00 / 0.00%
             |             
            
                72.80
             |           
            
                73.00
             |               
            
                72.50
             |                           
            
                72.60
             | 
            
                72.80
             |                     
            
                26.22
             |                                 
            
                12,060
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2017
             | 
            
                +0.10 / +0.14%
             |             
            
                73.90
             |           
            
                74.00
             |               
            
                72.00
             |                           
            
                72.60
             | 
            
                72.53
             |                     
            
                26.22
             |                                 
            
                17,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2017
             | 
            
                -0.50 / -0.68%
             |             
            
                73.80
             |           
            
                73.80
             |               
            
                71.50
             |                           
            
                72.50
             | 
            
                72.70
             |                     
            
                26.18
             |                                 
            
                9,010
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.40
             |           
            
                74.40
             |               
            
                72.00
             |                           
            
                73.00
             | 
            
                72.36
             |                     
            
                26.36
             |                                 
            
                11,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2017
             | 
            
                -1.10 / -1.48%
             |             
            
                74.10
             |           
            
                74.20
             |               
            
                73.00
             |                           
            
                73.00
             | 
            
                73.64
             |                     
            
                26.36
             |                                 
            
                6,980
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2017
             | 
            
                -0.40 / -0.54%
             |             
            
                74.80
             |           
            
                75.40
             |               
            
                74.10
             |                           
            
                74.10
             | 
            
                74.50
             |                     
            
                26.76
             |                                 
            
                7,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2017
             | 
            
                -0.30 / -0.40%
             |             
            
                74.80
             |           
            
                74.80
             |               
            
                73.80
             |                           
            
                74.50
             | 
            
                74.60
             |                     
            
                26.90
             |                                 
            
                2,480
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.60
             |           
            
                74.90
             |               
            
                74.00
             |                           
            
                74.80
             | 
            
                74.29
             |                     
            
                27.01
             |                                 
            
                3,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                75.30
             |           
            
                75.30
             |               
            
                74.60
             |                           
            
                74.80
             | 
            
                74.89
             |                     
            
                27.01
             |                                 
            
                6,810
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2017
             | 
            
                +0.40 / +0.54%
             |             
            
                74.10
             |           
            
                75.20
             |               
            
                74.10
             |                           
            
                74.80
             | 
            
                74.94
             |                     
            
                27.01
             |                                 
            
                4,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2017
             | 
            
                -0.10 / -0.13%
             |             
            
                74.50
             |           
            
                74.50
             |               
            
                74.20
             |                           
            
                74.40
             | 
            
                74.46
             |                     
            
                26.87
             |                                 
            
                5,520
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                74.50
             |           
            
                74.50
             |               
            
                74.10
             |                           
            
                74.50
             | 
            
                74.36
             |                     
            
                26.90
             |                                 
            
                4,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2017
             | 
            
                +1.50 / +2.05%
             |             
            
                74.00
             |           
            
                74.50
             |               
            
                73.00
             |                           
            
                74.50
             | 
            
                73.99
             |                     
            
                26.90
             |                                 
            
                12,420
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                73.00
             |           
            
                73.50
             |               
            
                72.40
             |                           
            
                73.00
             | 
            
                72.86
             |                     
            
                26.36
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2017
             | 
            
                +0.10 / +0.14%
             |             
            
                73.80
             |           
            
                73.80
             |               
            
                72.50
             |                           
            
                73.00
             | 
            
                72.86
             |                     
            
                26.36
             |                                 
            
                6,890
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2016
             | 
            
                -1.00 / -1.35%
             |             
            
                72.90
             |           
            
                73.90
             |               
            
                72.80
             |                           
            
                72.90
             | 
            
                72.96
             |                     
            
                26.32
             |                                 
            
                3,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2016
             | 
            
                +0.50 / +0.68%
             |             
            
                74.00
             |           
            
                74.00
             |               
            
                72.00
             |                           
            
                73.90
             | 
            
                73.98
             |                     
            
                26.69
             |                                 
            
                1,230
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2016
             | 
            
                -1.10 / -1.48%
             |             
            
                74.00
             |           
            
                75.90
             |               
            
                73.30
             |                           
            
                73.40
             | 
            
                74.17
             |                     
            
                26.50
             |                                 
            
                1,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2016
             | 
            
                +2.00 / +2.76%
             |             
            
                72.60
             |           
            
                74.50
             |               
            
                72.50
             |                           
            
                74.50
             | 
            
                73.31
             |                     
            
                26.90
             |                                 
            
                25,250
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2016
             | 
            
                -0.10 / -0.14%
             |             
            
                72.50
             |           
            
                72.90
             |               
            
                71.50
             |                           
            
                72.50
             | 
            
                71.58
             |                     
            
                26.18
             |                                 
            
                5,630
             |  
            
                 
             |                                                              
             
    
         
    
    
 |