| 
                 
                    Closing price on 5/16/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    45.80 | 
                 
                
                    | High | 
                    45.80 | 
                 
                
                    | Low | 
                    45.00 | 
                     
                
                    | Volume | 
                    9,000 | 
                                 
                
                    | Split-adjusted Price | 
                    37.03 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/16/2018
             | 
            
                -1.00 / -2.17%
             |             
            
                45.80
             |           
            
                45.80
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.44
             |                     
            
                37.03
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2018
             | 
            
                +1.00 / +2.22%
             |             
            
                45.00
             |           
            
                46.00
             |               
            
                45.00
             |                           
            
                46.00
             | 
            
                45.75
             |                     
            
                37.86
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2018
             | 
            
                +0.90 / +2.04%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                37.03
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2018
             | 
            
                +1.00 / +2.27%
             |             
            
                44.00
             |           
            
                45.00
             |               
            
                44.00
             |                           
            
                45.00
             | 
            
                44.08
             |                     
            
                37.03
             |                                 
            
                11,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2018
             | 
            
                +0.10 / +0.23%
             |             
            
                44.00
             |           
            
                44.00
             |               
            
                44.00
             |                           
            
                44.00
             | 
            
                44.00
             |                     
            
                36.21
             |                                 
            
                7,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2018
             | 
            
                +0.40 / +0.92%
             |             
            
                43.80
             |           
            
                44.00
             |               
            
                43.80
             |                           
            
                43.90
             | 
            
                43.98
             |                     
            
                36.13
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2018
             | 
            
                -0.50 / -1.14%
             |             
            
                44.00
             |           
            
                44.50
             |               
            
                43.50
             |                           
            
                43.50
             | 
            
                44.01
             |                     
            
                35.80
             |                                 
            
                42,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2018
             | 
            
                +0.50 / +1.15%
             |             
            
                43.50
             |           
            
                44.00
             |               
            
                43.00
             |                           
            
                44.00
             | 
            
                43.30
             |                     
            
                36.21
             |                                 
            
                4,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2018
             | 
            
                +2.90 / +7.06%
             |             
            
                42.50
             |           
            
                44.00
             |               
            
                42.50
             |                           
            
                44.00
             | 
            
                43.53
             |                     
            
                36.21
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2018
             | 
            
                -2.90 / -6.59%
             |             
            
                44.00
             |           
            
                44.00
             |               
            
                41.00
             |                           
            
                41.10
             | 
            
                42.18
             |                     
            
                33.82
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2018
             | 
            
                -1.00 / -2.22%
             |             
            
                44.00
             |           
            
                44.00
             |               
            
                44.00
             |                           
            
                44.00
             | 
            
                44.00
             |                     
            
                36.21
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2018
             | 
            
                0.00 / 0.00%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                37.03
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                37.03
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2018
             | 
            
                -0.10 / -0.22%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                44.90
             |                           
            
                44.90
             | 
            
                44.95
             |                     
            
                36.95
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2018
             | 
            
                -2.00 / -4.26%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                37.03
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2018
             | 
            
                0.00 / 0.00%
             |             
            
                47.00
             |           
            
                47.00
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                38.68
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.13
             |                     
            
                38.68
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2018
             | 
            
                +1.90 / +4.21%
             |             
            
                47.00
             |           
            
                47.50
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.30
             |                     
            
                38.68
             |                                 
            
                7,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2018
             | 
            
                -2.80 / -5.85%
             |             
            
                47.90
             |           
            
                47.90
             |               
            
                45.10
             |                           
            
                45.10
             | 
            
                47.22
             |                     
            
                37.11
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2018
             | 
            
                -0.30 / -0.62%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                47.90
             |                           
            
                47.90
             | 
            
                47.91
             |                     
            
                39.42
             |                                 
            
                8,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2018
             | 
            
                -0.10 / -0.21%
             |             
            
                48.50
             |           
            
                48.60
             |               
            
                48.00
             |                           
            
                48.60
             | 
            
                48.25
             |                     
            
                39.99
             |                                 
            
                4,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2018
             | 
            
                +1.20 / +2.53%
             |             
            
                48.50
             |           
            
                48.70
             |               
            
                48.50
             |                           
            
                48.70
             | 
            
                48.57
             |                     
            
                40.08
             |                                 
            
                4,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2018
             | 
            
                -0.80 / -1.66%
             |             
            
                47.50
             |           
            
                47.50
             |               
            
                47.50
             |                           
            
                47.50
             | 
            
                47.50
             |                     
            
                39.09
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2018
             | 
            
                -0.20 / -0.41%
             |             
            
                48.30
             |           
            
                48.30
             |               
            
                48.30
             |                           
            
                48.30
             | 
            
                48.30
             |                     
            
                39.75
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                48.50
             |                           
            
                48.50
             | 
            
                48.50
             |                     
            
                39.91
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2018
             | 
            
                +0.10 / +0.21%
             |             
            
                48.10
             |           
            
                48.50
             |               
            
                48.10
             |                           
            
                48.50
             | 
            
                48.45
             |                     
            
                39.91
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2018
             | 
            
                -0.10 / -0.21%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                48.10
             |                           
            
                48.40
             | 
            
                48.25
             |                     
            
                39.83
             |                                 
            
                7,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2018
             | 
            
                -0.50 / -1.02%
             |             
            
                48.00
             |           
            
                49.00
             |               
            
                48.00
             |                           
            
                48.50
             | 
            
                48.73
             |                     
            
                39.91
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2018
             | 
            
                -0.40 / -0.81%
             |             
            
                49.00
             |           
            
                49.00
             |               
            
                49.00
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                40.32
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2018
             | 
            
                0.00 / 0.00%
             |             
            
                49.40
             |           
            
                49.40
             |               
            
                49.40
             |                           
            
                49.40
             | 
            
                49.40
             |                     
            
                40.65
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |