| 
                 
                    Closing price on 5/3/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    50.00 | 
                 
                
                    | High | 
                    50.10 | 
                 
                
                    | Low | 
                    49.90 | 
                     
                
                    | Volume | 
                    9,120 | 
                                 
                
                    | Split-adjusted Price | 
                    35.77 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NNC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.10
             |               
            
                49.90
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                35.77
             |                                 
            
                9,120
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.10
             |               
            
                49.90
             |                           
            
                50.00
             | 
            
                50.05
             |                     
            
                35.77
             |                                 
            
                29,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2019
             | 
            
                -0.20 / -0.40%
             |             
            
                49.90
             |           
            
                50.40
             |               
            
                49.90
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                35.77
             |                                 
            
                6,540
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2019
             | 
            
                +0.20 / +0.40%
             |             
            
                50.00
             |           
            
                50.20
             |               
            
                49.90
             |                           
            
                50.20
             | 
            
                50.08
             |                     
            
                35.92
             |                                 
            
                1,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2019
             | 
            
                -0.20 / -0.40%
             |             
            
                50.00
             |           
            
                50.20
             |               
            
                49.80
             |                           
            
                50.00
             | 
            
                50.02
             |                     
            
                35.77
             |                                 
            
                20,130
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2019
             | 
            
                +0.30 / +0.60%
             |             
            
                50.30
             |           
            
                50.30
             |               
            
                49.80
             |                           
            
                50.20
             | 
            
                50.03
             |                     
            
                35.92
             |                                 
            
                33,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2019
             | 
            
                -0.60 / -1.19%
             |             
            
                50.10
             |           
            
                50.50
             |               
            
                49.40
             |                           
            
                49.90
             | 
            
                49.89
             |                     
            
                35.70
             |                                 
            
                18,760
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2019
             | 
            
                -0.20 / -0.39%
             |             
            
                50.10
             |           
            
                51.00
             |               
            
                50.00
             |                           
            
                50.50
             | 
            
                50.06
             |                     
            
                36.13
             |                                 
            
                8,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.70
             |           
            
                50.70
             |               
            
                50.00
             |                           
            
                50.70
             | 
            
                50.55
             |                     
            
                36.27
             |                                 
            
                1,820
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2019
             | 
            
                -0.50 / -0.98%
             |             
            
                51.20
             |           
            
                51.20
             |               
            
                50.70
             |                           
            
                50.70
             | 
            
                50.90
             |                     
            
                36.27
             |                                 
            
                18,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                51.30
             |           
            
                51.30
             |               
            
                50.90
             |                           
            
                51.20
             | 
            
                51.14
             |                     
            
                36.63
             |                                 
            
                15,370
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2019
             | 
            
                -0.10 / -0.19%
             |             
            
                51.30
             |           
            
                51.40
             |               
            
                50.90
             |                           
            
                51.20
             | 
            
                51.36
             |                     
            
                36.63
             |                                 
            
                3,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2019
             | 
            
                +0.30 / +0.59%
             |             
            
                50.50
             |           
            
                51.40
             |               
            
                50.50
             |                           
            
                51.30
             | 
            
                51.33
             |                     
            
                36.70
             |                                 
            
                3,390
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2019
             | 
            
                +0.50 / +0.99%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                50.40
             |                           
            
                51.00
             | 
            
                50.56
             |                     
            
                36.49
             |                                 
            
                16,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.50
             |           
            
                54.00
             |               
            
                50.40
             |                           
            
                50.50
             | 
            
                50.71
             |                     
            
                36.13
             |                                 
            
                30,470
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.70
             |               
            
                50.00
             |                           
            
                50.50
             | 
            
                50.48
             |                     
            
                36.13
             |                                 
            
                25,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2019
             | 
            
                +0.40 / +0.80%
             |             
            
                49.60
             |           
            
                50.60
             |               
            
                49.60
             |                           
            
                50.50
             | 
            
                50.36
             |                     
            
                36.13
             |                                 
            
                13,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2019
             | 
            
                +0.45 / +0.91%
             |             
            
                49.50
             |           
            
                50.10
             |               
            
                49.50
             |                           
            
                50.10
             | 
            
                49.76
             |                     
            
                35.85
             |                                 
            
                10,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2019
             | 
            
                -0.35 / -0.70%
             |             
            
                49.80
             |           
            
                50.40
             |               
            
                49.60
             |                           
            
                49.65
             | 
            
                49.76
             |                     
            
                35.52
             |                                 
            
                18,850
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2019
             | 
            
                +0.10 / +0.20%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.70
             |                           
            
                50.00
             | 
            
                50.02
             |                     
            
                35.77
             |                                 
            
                22,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2019
             | 
            
                -0.30 / -0.60%
             |             
            
                50.00
             |           
            
                50.80
             |               
            
                49.80
             |                           
            
                49.90
             | 
            
                50.26
             |                     
            
                35.70
             |                                 
            
                25,350
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2019
             | 
            
                -0.50 / -0.99%
             |             
            
                50.80
             |           
            
                50.80
             |               
            
                50.20
             |                           
            
                50.20
             | 
            
                50.66
             |                     
            
                35.92
             |                                 
            
                4,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.70
             |           
            
                51.00
             |               
            
                50.70
             |                           
            
                50.70
             | 
            
                50.73
             |                     
            
                36.27
             |                                 
            
                11,670
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2019
             | 
            
                +0.20 / +0.40%
             |             
            
                50.30
             |           
            
                50.80
             |               
            
                50.30
             |                           
            
                50.70
             | 
            
                50.56
             |                     
            
                36.27
             |                                 
            
                5,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                49.80
             |           
            
                50.70
             |               
            
                49.80
             |                           
            
                50.50
             | 
            
                50.54
             |                     
            
                36.13
             |                                 
            
                8,410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2019
             | 
            
                -0.10 / -0.20%
             |             
            
                50.00
             |           
            
                50.50
             |               
            
                50.00
             |                           
            
                50.50
             | 
            
                50.06
             |                     
            
                36.13
             |                                 
            
                7,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2019
             | 
            
                -0.70 / -1.36%
             |             
            
                50.50
             |           
            
                51.00
             |               
            
                50.40
             |                           
            
                50.60
             | 
            
                50.49
             |                     
            
                36.20
             |                                 
            
                8,160
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2019
             | 
            
                +0.60 / +1.18%
             |             
            
                50.70
             |           
            
                51.40
             |               
            
                50.70
             |                           
            
                51.30
             | 
            
                51.02
             |                     
            
                36.70
             |                                 
            
                13,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2019
             | 
            
                -1.40 / -2.69%
             |             
            
                50.00
             |           
            
                52.00
             |               
            
                50.00
             |                           
            
                50.70
             | 
            
                50.57
             |                     
            
                36.27
             |                                 
            
                10,480
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2019
             | 
            
                -0.80 / -1.51%
             |             
            
                52.80
             |           
            
                52.90
             |               
            
                51.80
             |                           
            
                52.10
             | 
            
                52.06
             |                     
            
                37.28
             |                                 
            
                11,870
             |  
            
                 
             |                                                              
             
    
         
    
    
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