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                    Closing price on 4/18/2019
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                    | Open | 24.60 |  
                    | High | 25.00 |  
                    | Low | 24.50 |  
                    | Volume | 21,800 |  
                    | Split-adjusted Price | 17.36 |  
                
             | 
 |  NRC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/18/2019 | -0.20 / -0.80% | 24.60 | 25.00 | 24.50 | 24.80 | 24.79 | 17.36 | 21,800 |   |  
            | 4/17/2019 | 0.00 / 0.00% | 24.90 | 25.10 | 24.60 | 25.00 | 24.82 | 17.50 | 36,300 |   |  			
            | 4/16/2019 | +0.10 / +0.40% | 24.50 | 25.00 | 24.50 | 25.00 | 24.79 | 17.50 | 33,000 |   |  
            | 4/12/2019 | -0.10 / -0.40% | 24.60 | 25.00 | 24.60 | 24.90 | 24.79 | 17.43 | 27,200 |   |  			
            | 4/11/2019 | +0.40 / +1.63% | 24.60 | 25.10 | 24.60 | 25.00 | 24.79 | 17.50 | 41,200 |   |  
            | 4/10/2019 | -0.50 / -1.99% | 25.30 | 25.30 | 24.60 | 24.60 | 24.68 | 17.22 | 21,100 |   |  			
            | 4/9/2019 | +0.10 / +0.40% | 25.00 | 25.20 | 24.80 | 25.10 | 24.98 | 17.57 | 47,300 |   |  
            | 4/8/2019 | -0.30 / -1.19% | 25.40 | 25.50 | 24.80 | 25.00 | 25.04 | 17.50 | 42,100 |   |  			
            | 4/5/2019 | +0.10 / +0.40% | 25.20 | 25.50 | 24.60 | 25.30 | 25.03 | 17.71 | 64,800 |   |  
            | 4/4/2019 | +0.40 / +1.61% | 25.20 | 25.70 | 24.80 | 25.20 | 25.04 | 17.64 | 47,400 |   |  			
            | 4/3/2019 | -0.40 / -1.59% | 24.70 | 25.30 | 24.70 | 24.80 | 24.97 | 17.36 | 25,300 |   |  
            | 4/2/2019 | +0.10 / +0.40% | 25.20 | 25.90 | 25.00 | 25.20 | 25.28 | 17.64 | 44,900 |   |  			
            | 4/1/2019 | +0.70 / +2.87% | 25.00 | 25.90 | 24.50 | 25.10 | 25.16 | 17.57 | 59,300 |   |  
            | 3/29/2019 | -1.00 / -3.94% | 25.10 | 26.00 | 24.40 | 24.40 | 24.85 | 17.08 | 42,100 |   |  			
            | 3/28/2019 | +0.10 / +0.40% | 25.40 | 26.50 | 25.00 | 25.40 | 25.68 | 17.78 | 50,400 |   |  
            | 3/27/2019 | +0.10 / +0.40% | 25.40 | 26.50 | 25.00 | 25.30 | 25.65 | 17.71 | 36,200 |   |  			
            | 3/26/2019 | -2.40 / -8.70% | 25.50 | 27.90 | 25.20 | 25.20 | 25.88 | 17.64 | 55,000 |   |  
            | 3/25/2019 | +0.60 / +2.22% | 25.00 | 28.30 | 25.00 | 27.60 | 25.70 | 19.32 | 39,500 |   |  			
            | 3/22/2019 | -1.90 / -6.57% | 28.40 | 29.90 | 27.00 | 27.00 | 28.18 | 18.90 | 59,600 |   |  
            | 3/21/2019 | +0.50 / +1.76% | 28.30 | 29.00 | 28.30 | 28.90 | 28.66 | 20.23 | 78,500 |   |  			
            | 3/20/2019 | -0.20 / -0.70% | 28.30 | 28.90 | 28.30 | 28.40 | 28.53 | 19.88 | 48,100 |   |  
            | 3/19/2019 | -1.30 / -4.35% | 29.00 | 29.80 | 28.30 | 28.60 | 28.54 | 20.02 | 45,300 |   |  			
            | 3/18/2019 | -0.40 / -1.32% | 30.10 | 30.20 | 29.00 | 29.90 | 29.60 | 20.93 | 64,500 |   |  
            | 3/15/2019 | -0.70 / -2.26% | 30.70 | 31.00 | 30.00 | 30.30 | 30.42 | 21.21 | 40,400 |   |  			
            | 3/14/2019 | -0.40 / -1.27% | 31.50 | 31.80 | 30.90 | 31.00 | 31.11 | 21.70 | 79,200 |   |  
            | 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 |   |  |