| 
                 
                    Closing price on 7/15/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.80 | 
                 
                
                    | High | 
                    24.90 | 
                 
                
                    | Low | 
                    24.00 | 
                     
                
                    | Volume | 
                    37,500 | 
                                 
                
                    | Split-adjusted Price | 
                    17.22 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/15/2019
             | 
            
                -0.20 / -0.81%
             |             
            
                24.80
             |           
            
                24.90
             |               
            
                24.00
             |                           
            
                24.60
             | 
            
                24.27
             |                     
            
                17.22
             |                                 
            
                37,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.80
             |               
            
                24.30
             |                           
            
                24.80
             | 
            
                24.62
             |                     
            
                17.36
             |                                 
            
                18,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2019
             | 
            
                +0.10 / +0.40%
             |             
            
                24.70
             |           
            
                24.80
             |               
            
                24.70
             |                           
            
                24.80
             | 
            
                24.72
             |                     
            
                17.36
             |                                 
            
                16,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2019
             | 
            
                +0.10 / +0.41%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.60
             |                           
            
                24.70
             | 
            
                24.66
             |                     
            
                17.29
             |                                 
            
                19,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.50
             |                           
            
                24.60
             | 
            
                24.59
             |                     
            
                17.22
             |                                 
            
                20,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2019
             | 
            
                -0.10 / -0.40%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.58
             |                     
            
                17.22
             |                                 
            
                30,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.60
             |                           
            
                24.70
             | 
            
                24.66
             |                     
            
                17.29
             |                                 
            
                18,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.80
             |               
            
                24.60
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                17.29
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2019
             | 
            
                +0.50 / +2.07%
             |             
            
                24.50
             |           
            
                24.70
             |               
            
                24.20
             |                           
            
                24.70
             | 
            
                24.56
             |                     
            
                17.29
             |                                 
            
                25,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2019
             | 
            
                -0.50 / -2.02%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.20
             |                           
            
                24.20
             | 
            
                24.61
             |                     
            
                16.94
             |                                 
            
                18,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.10
             |                           
            
                24.70
             | 
            
                24.58
             |                     
            
                17.29
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.60
             |                           
            
                24.70
             | 
            
                24.67
             |                     
            
                17.29
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.20
             |                           
            
                24.70
             | 
            
                24.57
             |                     
            
                17.29
             |                                 
            
                20,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.90
             |               
            
                24.50
             |                           
            
                24.70
             | 
            
                24.66
             |                     
            
                17.29
             |                                 
            
                21,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.90
             |               
            
                24.50
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                17.29
             |                                 
            
                23,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2019
             | 
            
                +0.10 / +0.41%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.40
             |                           
            
                24.70
             | 
            
                24.60
             |                     
            
                17.29
             |                                 
            
                19,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.50
             |                           
            
                24.60
             | 
            
                24.55
             |                     
            
                17.22
             |                                 
            
                22,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.10
             |                           
            
                24.60
             | 
            
                24.50
             |                     
            
                17.22
             |                                 
            
                14,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.10
             |                           
            
                24.60
             | 
            
                24.43
             |                     
            
                17.22
             |                                 
            
                22,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                24.60
             |               
            
                24.10
             |                           
            
                24.60
             | 
            
                24.42
             |                     
            
                17.22
             |                                 
            
                24,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.10
             |                           
            
                24.60
             | 
            
                24.40
             |                     
            
                17.22
             |                                 
            
                27,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.80
             |               
            
                24.30
             |                           
            
                24.60
             | 
            
                24.54
             |                     
            
                17.22
             |                                 
            
                21,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2019
             | 
            
                -0.10 / -0.40%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.50
             |                           
            
                24.60
             | 
            
                24.56
             |                     
            
                17.22
             |                                 
            
                22,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2019
             | 
            
                -0.20 / -0.80%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.50
             |                           
            
                24.70
             | 
            
                24.66
             |                     
            
                17.29
             |                                 
            
                21,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.40
             |                           
            
                24.90
             | 
            
                24.72
             |                     
            
                17.43
             |                                 
            
                26,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2019
             | 
            
                -0.30 / -1.19%
             |             
            
                24.70
             |           
            
                25.20
             |               
            
                24.50
             |                           
            
                24.90
             | 
            
                24.73
             |                     
            
                17.43
             |                                 
            
                35,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2019
             | 
            
                +0.60 / +2.44%
             |             
            
                24.50
             |           
            
                25.20
             |               
            
                24.50
             |                           
            
                25.20
             | 
            
                24.85
             |                     
            
                17.64
             |                                 
            
                33,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                17.22
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.60
             |           
            
                24.80
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.61
             |                     
            
                17.22
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2019
             | 
            
                -0.20 / -0.81%
             |             
            
                24.60
             |           
            
                24.80
             |               
            
                24.30
             |                           
            
                24.60
             | 
            
                24.49
             |                     
            
                17.22
             |                                 
            
                6,800
             |  
            
                 
             |                                                              
             
    
         
    
    
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