| 
                 
                    Closing price on 5/9/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    58.60 | 
                 
                
                    | High | 
                    59.00 | 
                 
                
                    | Low | 
                    58.60 | 
                     
                
                    | Volume | 
                    800 | 
                                 
                
                    | Split-adjusted Price | 
                    31.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/9/2017
             | 
            
                +0.80 / +1.37%
             |             
            
                58.60
             |           
            
                59.00
             |               
            
                58.60
             |                           
            
                59.00
             | 
            
                58.84
             |                     
            
                31.68
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                -0.80 / -1.36%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.20
             |                           
            
                58.20
             | 
            
                58.50
             |                     
            
                31.25
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2017
             | 
            
                -1.60 / -2.64%
             |             
            
                60.60
             |           
            
                60.60
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.04
             |                     
            
                31.68
             |                                 
            
                10,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                69.60
             |           
            
                69.60
             |               
            
                60.60
             |                           
            
                60.60
             | 
            
                61.10
             |                     
            
                32.53
             |                                 
            
                9,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                +2.70 / +4.67%
             |             
            
                58.00
             |           
            
                61.50
             |               
            
                58.00
             |                           
            
                60.50
             | 
            
                60.56
             |                     
            
                32.48
             |                                 
            
                15,349
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -0.80 / -1.36%
             |             
            
                58.90
             |           
            
                58.90
             |               
            
                57.50
             |                           
            
                58.00
             | 
            
                57.80
             |                     
            
                31.14
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                +0.80 / +1.38%
             |             
            
                58.80
             |           
            
                58.80
             |               
            
                58.80
             |                           
            
                58.80
             | 
            
                58.80
             |                     
            
                31.57
             |                                 
            
                1
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                -1.00 / -1.69%
             |             
            
                58.50
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.84
             |                     
            
                31.14
             |                                 
            
                10,115
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                +1.50 / +2.61%
             |             
            
                58.40
             |           
            
                59.00
             |               
            
                58.40
             |                           
            
                59.00
             | 
            
                58.83
             |                     
            
                31.68
             |                                 
            
                6,348
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                57.50
             |                           
            
                57.50
             | 
            
                57.50
             |                     
            
                30.87
             |                                 
            
                742
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                +0.40 / +0.70%
             |             
            
                57.60
             |           
            
                57.70
             |               
            
                57.40
             |                           
            
                57.40
             | 
            
                57.48
             |                     
            
                30.82
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                -0.10 / -0.18%
             |             
            
                57.00
             |           
            
                58.00
             |               
            
                57.00
             |                           
            
                57.00
             | 
            
                57.21
             |                     
            
                30.60
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2017
             | 
            
                +0.60 / +1.06%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                57.00
             |                           
            
                57.10
             | 
            
                57.26
             |                     
            
                30.66
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2017
             | 
            
                -0.60 / -1.05%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.89
             |                     
            
                30.33
             |                                 
            
                4,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2017
             | 
            
                -0.60 / -1.04%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                57.00
             |                           
            
                57.10
             | 
            
                57.12
             |                     
            
                30.66
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2017
             | 
            
                +0.20 / +0.35%
             |             
            
                57.50
             |           
            
                57.90
             |               
            
                57.00
             |                           
            
                57.80
             | 
            
                57.71
             |                     
            
                31.03
             |                                 
            
                5,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2017
             | 
            
                -0.30 / -0.52%
             |             
            
                57.50
             |           
            
                58.10
             |               
            
                57.50
             |                           
            
                57.60
             | 
            
                57.92
             |                     
            
                30.92
             |                                 
            
                2,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2017
             | 
            
                -0.70 / -1.19%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                57.90
             |                           
            
                57.90
             | 
            
                57.95
             |                     
            
                31.08
             |                                 
            
                4,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                58.60
             |           
            
                58.60
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.60
             |                     
            
                31.46
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                31.41
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2017
             | 
            
                -0.30 / -0.51%
             |             
            
                58.90
             |           
            
                58.90
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.38
             |                     
            
                31.14
             |                                 
            
                2,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2017
             | 
            
                -0.90 / -1.53%
             |             
            
                58.70
             |           
            
                58.70
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.33
             |                     
            
                31.14
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2017
             | 
            
                +0.40 / +0.68%
             |             
            
                58.50
             |           
            
                59.00
             |               
            
                58.50
             |                           
            
                58.90
             | 
            
                58.75
             |                     
            
                31.62
             |                                 
            
                1,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                58.50
             |           
            
                58.90
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.53
             |                     
            
                31.41
             |                                 
            
                14,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2017
             | 
            
                -0.20 / -0.34%
             |             
            
                58.70
             |           
            
                58.70
             |               
            
                58.00
             |                           
            
                58.50
             | 
            
                58.53
             |                     
            
                31.41
             |                                 
            
                1,410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2017
             | 
            
                +0.70 / +1.21%
             |             
            
                58.70
             |           
            
                58.70
             |               
            
                58.70
             |                           
            
                58.70
             | 
            
                58.70
             |                     
            
                31.51
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2017
             | 
            
                -1.90 / -3.17%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.64
             |                     
            
                31.14
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2017
             | 
            
                +0.90 / +1.53%
             |             
            
                60.70
             |           
            
                60.70
             |               
            
                59.00
             |                           
            
                59.90
             | 
            
                60.06
             |                     
            
                32.16
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                60.90
             |           
            
                60.90
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                60.48
             |                     
            
                31.68
             |                                 
            
                1,720
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2017
             | 
            
                +0.20 / +0.34%
             |             
            
                58.80
             |           
            
                59.40
             |               
            
                58.70
             |                           
            
                59.00
             | 
            
                58.90
             |                     
            
                31.68
             |                                 
            
                6,450
             |  
            
                 
             |                                                              
             
    
         
    
    
 |