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                    Closing price on 3/13/2019
                 |  |  
    
        |           
                
                    | Open | 31.90 |  
                    | High | 31.90 |  
                    | Low | 30.90 |  
                    | Volume | 81,600 |  
                    | Split-adjusted Price | 21.98 |  
                
             | 
 |  NRC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/13/2019 | -0.40 / -1.26% | 31.90 | 31.90 | 30.90 | 31.40 | 31.45 | 21.98 | 81,600 |   |  
            | 3/12/2019 | +0.60 / +1.92% | 31.50 | 31.80 | 30.10 | 31.80 | 31.30 | 22.26 | 66,300 |   |  			
            | 3/11/2019 | +2.50 / +8.71% | 28.90 | 31.50 | 28.90 | 31.20 | 29.93 | 21.84 | 41,500 |   |  
            | 3/8/2019 | +0.10 / +0.35% | 28.50 | 28.90 | 28.00 | 28.70 | 28.64 | 20.09 | 89,700 |   |  			
            | 3/7/2019 | +1.20 / +4.38% | 27.90 | 28.60 | 27.30 | 28.60 | 28.17 | 20.02 | 66,400 |   |  
            | 3/6/2019 | 0.00 / 0.00% | 27.40 | 27.50 | 26.80 | 27.40 | 27.09 | 19.18 | 77,300 |   |  			
            | 3/5/2019 | -0.40 / -1.44% | 27.40 | 27.90 | 27.10 | 27.40 | 27.40 | 19.18 | 89,800 |   |  
            | 3/4/2019 | +0.80 / +2.96% | 27.20 | 29.70 | 27.20 | 27.80 | 27.71 | 19.46 | 91,300 |   |  			
            | 3/1/2019 | -8.60 / -24.16% | 27.00 | 27.00 | 26.00 | 27.00 | 26.80 | 18.90 | 102,100 |   |  
            | 2/28/2019 | -0.40 / -1.11% | 34.60 | 36.00 | 32.50 | 35.60 | 34.17 | 17.22 | 444,200 |   |  			
            | 2/27/2019 | 0.00 / 0.00% | 36.10 | 36.80 | 34.80 | 36.00 | 35.72 | 17.42 | 121,600 |   |  
            | 2/26/2019 | 0.00 / 0.00% | 36.20 | 36.20 | 34.60 | 36.00 | 35.10 | 17.42 | 110,900 |   |  			
            | 2/25/2019 | +0.70 / +1.98% | 35.50 | 36.00 | 35.40 | 36.00 | 35.69 | 17.42 | 71,000 |   |  
            | 2/22/2019 | +0.40 / +1.15% | 35.20 | 35.30 | 34.50 | 35.30 | 35.05 | 17.08 | 56,600 |   |  			
            | 2/21/2019 | -0.10 / -0.29% | 34.80 | 35.20 | 34.50 | 34.90 | 34.87 | 16.88 | 38,900 |   |  
            | 2/20/2019 | -0.10 / -0.28% | 35.30 | 36.40 | 34.30 | 35.00 | 34.90 | 16.93 | 31,300 |   |  			
            | 2/19/2019 | +0.30 / +0.86% | 34.80 | 36.30 | 34.70 | 35.10 | 35.29 | 16.98 | 28,900 |   |  
            | 2/18/2019 | +0.20 / +0.58% | 34.80 | 35.80 | 33.70 | 34.80 | 34.65 | 16.84 | 70,500 |   |  			
            | 2/15/2019 | -0.50 / -1.42% | 35.10 | 35.20 | 34.00 | 34.60 | 34.62 | 16.74 | 24,000 |   |  
            | 2/14/2019 | +0.10 / +0.29% | 35.00 | 35.10 | 34.30 | 35.10 | 34.79 | 16.98 | 31,800 |   |  			
            | 2/13/2019 | -0.80 / -2.23% | 35.80 | 36.80 | 34.50 | 35.00 | 35.67 | 16.93 | 37,200 |   |  
            | 2/12/2019 | -0.30 / -0.83% | 36.10 | 36.80 | 34.50 | 35.80 | 35.73 | 17.32 | 37,900 |   |  			
            | 2/11/2019 | 0.00 / 0.00% | 36.30 | 36.80 | 34.70 | 36.10 | 35.91 | 17.46 | 39,210 |   |  
            | 2/1/2019 | -0.10 / -0.28% | 35.50 | 36.80 | 35.50 | 36.10 | 36.07 | 17.46 | 36,600 |   |  			
            | 1/31/2019 | +0.10 / +0.28% | 36.30 | 36.40 | 36.10 | 36.20 | 36.25 | 17.51 | 35,300 |   |  
            | 1/30/2019 | +0.10 / +0.28% | 36.50 | 36.50 | 36.00 | 36.10 | 36.18 | 17.46 | 33,800 |   |  			
            | 1/29/2019 | 0.00 / 0.00% | 36.50 | 36.50 | 35.50 | 36.00 | 36.08 | 17.42 | 72,900 |   |  
            | 1/28/2019 | -1.00 / -2.70% | 37.00 | 38.00 | 35.50 | 36.00 | 36.56 | 17.42 | 43,400 |   |  			
            | 1/25/2019 | -0.50 / -1.33% | 37.50 | 38.00 | 36.10 | 37.00 | 36.51 | 17.90 | 18,600 |   |  
            | 1/24/2019 | -0.50 / -1.32% | 38.00 | 41.00 | 36.00 | 37.50 | 37.26 | 18.14 | 32,300 |   |  |