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                    Closing price on 6/11/2021
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        |           
                
                    | Open | 19.60 |  
                    | High | 19.90 |  
                    | Low | 19.30 |  
                    | Volume | 297,400 |  
                    | Split-adjusted Price | 18.05 |  
                
             | 
 |  NRC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/11/2021 | +0.20 / +1.02% | 19.60 | 19.90 | 19.30 | 19.90 | 19.56 | 18.05 | 297,400 |   |  
            | 6/10/2021 | -0.10 / -0.51% | 20.00 | 20.00 | 19.30 | 19.70 | 19.60 | 17.87 | 318,800 |   |  			
            | 6/9/2021 | +0.30 / +1.54% | 19.50 | 19.80 | 19.00 | 19.80 | 19.48 | 17.96 | 324,900 |   |  
            | 6/8/2021 | -1.80 / -8.45% | 21.10 | 21.10 | 19.50 | 19.50 | 20.57 | 17.68 | 362,700 |   |  			
            | 6/7/2021 | -0.50 / -2.29% | 22.00 | 22.00 | 21.00 | 21.30 | 21.49 | 19.32 | 331,800 |   |  
            | 6/4/2021 | +1.80 / +9.00% | 20.00 | 22.00 | 20.00 | 21.80 | 21.44 | 19.77 | 589,200 |   |  			
            | 6/3/2021 | +0.50 / +2.56% | 19.50 | 20.00 | 19.50 | 20.00 | 19.92 | 18.14 | 383,100 |   |  
            | 6/2/2021 | +0.60 / +3.17% | 18.90 | 19.60 | 18.40 | 19.50 | 18.99 | 17.68 | 328,100 |   |  			
            | 6/1/2021 | +0.80 / +4.42% | 18.10 | 19.30 | 18.10 | 18.90 | 18.63 | 17.14 | 318,100 |   |  
            | 5/31/2021 | -0.70 / -3.72% | 18.50 | 18.70 | 18.10 | 18.10 | 18.30 | 16.41 | 339,800 |   |  			
            | 5/28/2021 | -0.20 / -1.05% | 18.90 | 19.00 | 18.50 | 18.80 | 18.73 | 17.05 | 282,000 |   |  
            | 5/27/2021 | -0.10 / -0.52% | 19.20 | 19.30 | 18.60 | 19.00 | 19.07 | 17.23 | 271,600 |   |  			
            | 5/26/2021 | -0.50 / -2.55% | 19.60 | 19.70 | 19.10 | 19.10 | 19.45 | 17.32 | 291,200 |   |  
            | 5/25/2021 | +0.50 / +2.62% | 19.30 | 19.90 | 19.20 | 19.60 | 19.59 | 17.78 | 340,400 |   |  			
            | 5/24/2021 | 0.00 / 0.00% | 19.10 | 19.50 | 18.80 | 19.10 | 19.16 | 17.32 | 270,600 |   |  
            | 5/21/2021 | +0.90 / +4.95% | 18.00 | 19.10 | 17.60 | 19.10 | 18.21 | 17.32 | 336,300 |   |  			
            | 5/20/2021 | -1.10 / -5.70% | 19.00 | 19.00 | 17.50 | 18.20 | 18.59 | 16.51 | 346,300 |   |  
            | 5/19/2021 | -0.30 / -1.53% | 19.30 | 19.40 | 19.00 | 19.30 | 19.17 | 17.50 | 253,900 |   |  			
            | 5/18/2021 | -0.30 / -1.51% | 19.80 | 19.90 | 19.30 | 19.60 | 19.62 | 17.78 | 252,000 |   |  
            | 5/17/2021 | -0.50 / -2.45% | 20.60 | 21.00 | 19.60 | 19.90 | 19.77 | 18.05 | 295,600 |   |  			
            | 5/14/2021 | +1.20 / +6.25% | 19.50 | 21.00 | 19.20 | 20.40 | 19.55 | 18.50 | 364,800 |   |  
            | 5/13/2021 | -0.10 / -0.52% | 19.10 | 19.40 | 19.00 | 19.20 | 19.28 | 17.41 | 302,200 |   |  			
            | 5/12/2021 | -0.60 / -3.02% | 19.70 | 19.70 | 18.80 | 19.30 | 19.08 | 17.50 | 390,800 |   |  
            | 5/11/2021 | -0.30 / -1.49% | 20.20 | 20.40 | 19.60 | 19.90 | 20.08 | 18.05 | 293,200 |   |  			
            | 5/10/2021 | -0.60 / -2.88% | 20.70 | 20.70 | 19.80 | 20.20 | 20.19 | 18.32 | 283,600 |   |  
            | 5/7/2021 | -0.70 / -3.26% | 21.20 | 21.30 | 20.60 | 20.80 | 20.74 | 18.86 | 334,900 |   |  			
            | 5/6/2021 | +0.60 / +2.87% | 20.90 | 21.80 | 20.70 | 21.50 | 21.23 | 19.50 | 274,500 |   |  
            | 5/5/2021 | +0.40 / +1.95% | 20.60 | 21.00 | 20.30 | 20.90 | 20.65 | 18.95 | 268,100 |   |  			
            | 5/4/2021 | -1.40 / -6.39% | 21.80 | 21.80 | 20.40 | 20.50 | 21.25 | 18.59 | 276,000 |   |  
            | 4/29/2021 | -0.10 / -0.45% | 22.10 | 22.10 | 21.80 | 21.90 | 21.93 | 19.86 | 245,300 |   |  |