| 
                 
                    Closing price on 12/20/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.90 | 
                 
                
                    | High | 
                    12.00 | 
                 
                
                    | Low | 
                    11.90 | 
                     
                
                    | Volume | 
                    11,100 | 
                                 
                
                    | Split-adjusted Price | 
                    8.64 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/20/2019
             | 
            
                +0.10 / +0.84%
             |             
            
                11.90
             |           
            
                12.00
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                11.93
             |                     
            
                8.64
             |                                 
            
                11,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                11.91
             |                     
            
                8.57
             |                                 
            
                12,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                11.90
             |           
            
                12.00
             |               
            
                11.90
             |                           
            
                11.90
             | 
            
                11.93
             |                     
            
                8.57
             |                                 
            
                5,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2019
             | 
            
                -0.10 / -0.83%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                12.02
             |                     
            
                8.57
             |                                 
            
                18,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.10
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.02
             |                     
            
                8.64
             |                                 
            
                10,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2019
             | 
            
                +0.20 / +1.69%
             |             
            
                11.80
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                11.96
             |                     
            
                8.64
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/12/2019
             | 
            
                -0.10 / -0.84%
             |             
            
                11.10
             |           
            
                11.80
             |               
            
                11.00
             |                           
            
                11.80
             | 
            
                11.34
             |                     
            
                8.50
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/11/2019
             | 
            
                -0.10 / -0.83%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                10.90
             |                           
            
                11.90
             | 
            
                11.03
             |                     
            
                8.57
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/10/2019
             | 
            
                -1.00 / -7.69%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                11.80
             |                     
            
                8.64
             |                                 
            
                20,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2019
             | 
            
                +1.10 / +9.24%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                9.36
             |                                 
            
                23,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2019
             | 
            
                +1.00 / +9.17%
             |             
            
                11.10
             |           
            
                11.90
             |               
            
                11.10
             |                           
            
                11.90
             | 
            
                11.67
             |                     
            
                8.57
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2019
             | 
            
                -0.50 / -4.39%
             |             
            
                10.30
             |           
            
                11.30
             |               
            
                10.30
             |                           
            
                10.90
             | 
            
                10.57
             |                     
            
                7.85
             |                                 
            
                204,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/4/2019
             | 
            
                -1.20 / -9.52%
             |             
            
                11.50
             |           
            
                11.60
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.46
             |                     
            
                8.21
             |                                 
            
                97,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/3/2019
             | 
            
                -0.70 / -5.26%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.61
             |                     
            
                9.07
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/2/2019
             | 
            
                -1.40 / -9.52%
             |             
            
                13.40
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.35
             |                     
            
                9.58
             |                                 
            
                24,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2019
             | 
            
                -1.60 / -9.82%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.70
             |                           
            
                14.70
             | 
            
                14.77
             |                     
            
                10.59
             |                                 
            
                12,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2019
             | 
            
                -1.70 / -9.44%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                16.10
             |                           
            
                16.30
             | 
            
                16.17
             |                     
            
                11.74
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2019
             | 
            
                -1.20 / -6.25%
             |             
            
                19.20
             |           
            
                19.20
             |               
            
                17.40
             |                           
            
                18.00
             | 
            
                18.09
             |                     
            
                12.60
             |                                 
            
                19,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2019
             | 
            
                -0.40 / -2.04%
             |             
            
                19.60
             |           
            
                19.60
             |               
            
                19.00
             |                           
            
                19.20
             | 
            
                19.32
             |                     
            
                13.44
             |                                 
            
                21,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2019
             | 
            
                -0.40 / -2.00%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                19.50
             |                           
            
                19.60
             | 
            
                19.61
             |                     
            
                13.72
             |                                 
            
                19,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                20.00
             |           
            
                20.50
             |               
            
                19.80
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                14.00
             |                                 
            
                20,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2019
             | 
            
                -1.40 / -6.54%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                21.02
             |                     
            
                14.00
             |                                 
            
                17,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2019
             | 
            
                -0.20 / -0.93%
             |             
            
                21.60
             |           
            
                21.60
             |               
            
                21.30
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                14.98
             |                                 
            
                15,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2019
             | 
            
                +0.10 / +0.47%
             |             
            
                21.50
             |           
            
                21.60
             |               
            
                21.40
             |                           
            
                21.60
             | 
            
                21.44
             |                     
            
                15.12
             |                                 
            
                25,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2019
             | 
            
                -0.20 / -0.92%
             |             
            
                21.70
             |           
            
                21.70
             |               
            
                21.00
             |                           
            
                21.50
             | 
            
                21.55
             |                     
            
                15.05
             |                                 
            
                24,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2019
             | 
            
                +0.10 / +0.46%
             |             
            
                21.40
             |           
            
                21.70
             |               
            
                21.40
             |                           
            
                21.70
             | 
            
                21.42
             |                     
            
                15.19
             |                                 
            
                18,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2019
             | 
            
                -0.10 / -0.46%
             |             
            
                21.50
             |           
            
                21.70
             |               
            
                21.20
             |                           
            
                21.60
             | 
            
                21.50
             |                     
            
                15.12
             |                                 
            
                19,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2019
             | 
            
                -0.30 / -1.36%
             |             
            
                21.70
             |           
            
                21.70
             |               
            
                21.50
             |                           
            
                21.70
             | 
            
                21.63
             |                     
            
                15.19
             |                                 
            
                20,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2019
             | 
            
                +0.30 / +1.38%
             |             
            
                21.60
             |           
            
                22.00
             |               
            
                21.00
             |                           
            
                22.00
             | 
            
                21.42
             |                     
            
                15.40
             |                                 
            
                27,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2019
             | 
            
                -0.10 / -0.46%
             |             
            
                21.00
             |           
            
                21.70
             |               
            
                20.80
             |                           
            
                21.70
             | 
            
                21.34
             |                     
            
                15.19
             |                                 
            
                26,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |