| 
                 
                    Closing price on 8/4/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    67.20 | 
                 
                
                    | High | 
                    68.00 | 
                 
                
                    | Low | 
                    66.40 | 
                     
                
                    | Volume | 
                    3,785 | 
                                 
                
                    | Split-adjusted Price | 
                    37.89 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/4/2017
             | 
            
                +0.50 / +0.75%
             |             
            
                67.20
             |           
            
                68.00
             |               
            
                66.40
             |                           
            
                67.00
             | 
            
                66.75
             |                     
            
                37.89
             |                                 
            
                3,785
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2017
             | 
            
                -1.30 / -1.92%
             |             
            
                66.00
             |           
            
                66.50
             |               
            
                65.40
             |                           
            
                66.50
             | 
            
                65.84
             |                     
            
                37.60
             |                                 
            
                3,702
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2017
             | 
            
                -0.20 / -0.29%
             |             
            
                67.00
             |           
            
                68.00
             |               
            
                67.00
             |                           
            
                67.80
             | 
            
                67.53
             |                     
            
                38.34
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2017
             | 
            
                -0.10 / -0.15%
             |             
            
                69.00
             |           
            
                69.00
             |               
            
                68.00
             |                           
            
                68.00
             | 
            
                68.32
             |                     
            
                38.45
             |                                 
            
                8,165
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2017
             | 
            
                +1.00 / +1.49%
             |             
            
                67.50
             |           
            
                70.00
             |               
            
                67.10
             |                           
            
                68.10
             | 
            
                68.55
             |                     
            
                38.51
             |                                 
            
                20,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2017
             | 
            
                +2.80 / +4.39%
             |             
            
                64.50
             |           
            
                71.80
             |               
            
                64.50
             |                           
            
                66.60
             | 
            
                67.10
             |                     
            
                37.66
             |                                 
            
                28,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2017
             | 
            
                +2.10 / +3.40%
             |             
            
                61.50
             |           
            
                63.80
             |               
            
                61.50
             |                           
            
                63.80
             | 
            
                62.47
             |                     
            
                36.08
             |                                 
            
                12,490
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2017
             | 
            
                +2.50 / +4.22%
             |             
            
                59.50
             |           
            
                61.80
             |               
            
                59.50
             |                           
            
                61.70
             | 
            
                60.97
             |                     
            
                34.89
             |                                 
            
                10,899
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2017
             | 
            
                -0.80 / -1.33%
             |             
            
                59.20
             |           
            
                59.20
             |               
            
                59.20
             |                           
            
                59.20
             | 
            
                59.20
             |                     
            
                33.48
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                59.50
             |                           
            
                60.00
             | 
            
                59.57
             |                     
            
                33.93
             |                                 
            
                7,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2017
             | 
            
                -1.00 / -1.64%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                33.93
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                61.00
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                34.49
             |                                 
            
                3,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2017
             | 
            
                -0.50 / -0.81%
             |             
            
                60.70
             |           
            
                61.00
             |               
            
                60.70
             |                           
            
                61.00
             | 
            
                60.79
             |                     
            
                34.49
             |                                 
            
                1,090
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2017
             | 
            
                +0.60 / +0.99%
             |             
            
                60.00
             |           
            
                61.50
             |               
            
                60.00
             |                           
            
                61.50
             | 
            
                61.15
             |                     
            
                34.78
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2017
             | 
            
                0.00 / 0.00%
             |             
            
                60.90
             |           
            
                60.90
             |               
            
                60.90
             |                           
            
                60.90
             | 
            
                60.90
             |                     
            
                34.44
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2017
             | 
            
                +2.50 / +4.20%
             |             
            
                59.10
             |           
            
                62.00
             |               
            
                59.10
             |                           
            
                62.00
             | 
            
                60.88
             |                     
            
                35.06
             |                                 
            
                2,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2017
             | 
            
                -1.50 / -2.46%
             |             
            
                59.00
             |           
            
                59.50
             |               
            
                59.00
             |                           
            
                59.50
             | 
            
                59.10
             |                     
            
                33.65
             |                                 
            
                11,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                60.90
             |                           
            
                61.00
             | 
            
                60.97
             |                     
            
                34.49
             |                                 
            
                3,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2017
             | 
            
                +2.00 / +3.39%
             |             
            
                60.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                61.00
             | 
            
                60.57
             |                     
            
                34.49
             |                                 
            
                4,911
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2017
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                33.36
             |                                 
            
                220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2017
             | 
            
                +0.30 / +0.51%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                33.36
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                58.70
             |           
            
                58.70
             |               
            
                58.70
             |                           
            
                58.70
             | 
            
                58.70
             |                     
            
                33.19
             |                                 
            
                310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2017
             | 
            
                -0.40 / -0.68%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.67
             |                     
            
                33.14
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2017
             | 
            
                +0.20 / +0.34%
             |             
            
                58.90
             |           
            
                59.10
             |               
            
                58.90
             |                           
            
                59.00
             | 
            
                58.98
             |                     
            
                33.36
             |                                 
            
                7,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.80
             |                           
            
                58.80
             | 
            
                58.95
             |                     
            
                33.25
             |                                 
            
                7,444
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2017
             | 
            
                0.00 / 0.00%
             |             
            
                58.70
             |           
            
                58.70
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.69
             |                     
            
                33.14
             |                                 
            
                5,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2017
             | 
            
                +0.30 / +0.51%
             |             
            
                58.40
             |           
            
                58.70
             |               
            
                58.40
             |                           
            
                58.60
             | 
            
                58.59
             |                     
            
                33.14
             |                                 
            
                7,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2017
             | 
            
                0.00 / 0.00%
             |             
            
                58.30
             |           
            
                58.30
             |               
            
                58.30
             |                           
            
                58.30
             | 
            
                58.30
             |                     
            
                32.97
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2017
             | 
            
                +1.20 / +2.10%
             |             
            
                58.00
             |           
            
                58.30
             |               
            
                58.00
             |                           
            
                58.30
             | 
            
                58.19
             |                     
            
                32.97
             |                                 
            
                17,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.10
             |           
            
                57.10
             |               
            
                57.10
             |                           
            
                57.10
             | 
            
                57.10
             |                     
            
                32.29
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |