| 
                 
                    Closing price on 2/28/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.00 | 
                 
                
                    | High | 
                    9.00 | 
                 
                
                    | Low | 
                    7.70 | 
                     
                
                    | Volume | 
                    299,900 | 
                                 
                
                    | Split-adjusted Price | 
                    6.36 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/28/2020
             | 
            
                -0.50 / -6.10%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                8.85
             |                     
            
                6.36
             |                                 
            
                299,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2020
             | 
            
                +0.70 / +9.33%
             |             
            
                8.00
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.17
             |                     
            
                6.77
             |                                 
            
                50,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2020
             | 
            
                +0.60 / +8.70%
             |             
            
                7.00
             |           
            
                7.50
             |               
            
                7.00
             |                           
            
                7.50
             | 
            
                7.47
             |                     
            
                6.20
             |                                 
            
                113,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2020
             | 
            
                +0.60 / +9.52%
             |             
            
                6.30
             |           
            
                6.90
             |               
            
                6.30
             |                           
            
                6.90
             | 
            
                6.88
             |                     
            
                5.70
             |                                 
            
                62,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2020
             | 
            
                -0.70 / -10.00%
             |             
            
                7.30
             |           
            
                7.40
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.77
             |                     
            
                5.21
             |                                 
            
                79,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2020
             | 
            
                -0.60 / -7.89%
             |             
            
                7.70
             |           
            
                7.90
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.29
             |                     
            
                5.78
             |                                 
            
                75,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2020
             | 
            
                -0.30 / -3.80%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.77
             |                     
            
                6.28
             |                                 
            
                57,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.30
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                8.03
             |                     
            
                6.53
             |                                 
            
                17,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2020
             | 
            
                +0.40 / +5.33%
             |             
            
                7.70
             |           
            
                8.20
             |               
            
                7.70
             |                           
            
                7.90
             | 
            
                8.04
             |                     
            
                6.53
             |                                 
            
                47,762
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2020
             | 
            
                +0.30 / +4.17%
             |             
            
                7.20
             |           
            
                7.90
             |               
            
                7.20
             |                           
            
                7.50
             | 
            
                7.81
             |                     
            
                6.20
             |                                 
            
                72,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2020
             | 
            
                -0.80 / -10.00%
             |             
            
                8.00
             |           
            
                8.80
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.86
             |                     
            
                5.95
             |                                 
            
                106,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2020
             | 
            
                +0.40 / +5.26%
             |             
            
                7.80
             |           
            
                8.30
             |               
            
                7.80
             |                           
            
                8.00
             | 
            
                8.16
             |                     
            
                6.61
             |                                 
            
                20,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                8.30
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.94
             |                     
            
                6.28
             |                                 
            
                168,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/11/2020
             | 
            
                -0.50 / -6.17%
             |             
            
                7.50
             |           
            
                7.90
             |               
            
                7.30
             |                           
            
                7.60
             | 
            
                7.57
             |                     
            
                6.28
             |                                 
            
                87,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2020
             | 
            
                -0.90 / -10.00%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.73
             |                     
            
                6.69
             |                                 
            
                105,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2020
             | 
            
                -0.80 / -8.16%
             |             
            
                9.80
             |           
            
                9.90
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.60
             |                     
            
                7.44
             |                                 
            
                56,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.80
             |           
            
                9.90
             |               
            
                9.80
             |                           
            
                9.80
             | 
            
                9.88
             |                     
            
                8.10
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2020
             | 
            
                -0.10 / -1.01%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.80
             |                           
            
                9.80
             | 
            
                9.89
             |                     
            
                8.10
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                10.00
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                8.18
             |                                 
            
                8,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2020
             | 
            
                -0.20 / -1.98%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.98
             |                     
            
                8.18
             |                                 
            
                41,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2020
             | 
            
                +0.20 / +2.02%
             |             
            
                9.90
             |           
            
                10.10
             |               
            
                9.90
             |                           
            
                10.10
             | 
            
                9.94
             |                     
            
                8.34
             |                                 
            
                21,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2020
             | 
            
                +0.10 / +1.02%
             |             
            
                9.80
             |           
            
                9.90
             |               
            
                9.80
             |                           
            
                9.90
             | 
            
                9.81
             |                     
            
                8.18
             |                                 
            
                18,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2020
             | 
            
                +0.50 / +5.38%
             |             
            
                9.40
             |           
            
                9.90
             |               
            
                9.40
             |                           
            
                9.80
             | 
            
                9.77
             |                     
            
                8.10
             |                                 
            
                15,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2020
             | 
            
                +0.30 / +3.33%
             |             
            
                9.10
             |           
            
                9.90
             |               
            
                9.10
             |                           
            
                9.30
             | 
            
                9.48
             |                     
            
                7.68
             |                                 
            
                16,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2020
             | 
            
                -0.90 / -9.09%
             |             
            
                9.90
             |           
            
                10.10
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.56
             |                     
            
                7.44
             |                                 
            
                31,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2020
             | 
            
                +0.40 / +4.21%
             |             
            
                9.50
             |           
            
                10.40
             |               
            
                9.50
             |                           
            
                9.90
             | 
            
                9.86
             |                     
            
                8.18
             |                                 
            
                7,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2020
             | 
            
                -0.40 / -4.04%
             |             
            
                9.30
             |           
            
                10.60
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.69
             |                     
            
                7.85
             |                                 
            
                36,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2020
             | 
            
                -1.10 / -10.00%
             |             
            
                11.10
             |           
            
                12.10
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                11.30
             |                     
            
                8.18
             |                                 
            
                65,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2020
             | 
            
                +1.00 / +10.00%
             |             
            
                10.10
             |           
            
                11.00
             |               
            
                10.10
             |                           
            
                11.00
             | 
            
                10.94
             |                     
            
                9.09
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2020
             | 
            
                +0.40 / +4.17%
             |             
            
                9.70
             |           
            
                10.50
             |               
            
                9.70
             |                           
            
                10.00
             | 
            
                10.30
             |                     
            
                8.26
             |                                 
            
                32,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |