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            | 
                    Closing price on 4/18/2018
                 |  |  
    
        |           
                
                    | Open | 40.30 |  
                    | High | 42.00 |  
                    | Low | 40.20 |  
                    | Volume | 33,000 |  
                    | Split-adjusted Price | 19.15 |  
                
             | 
 |  NRC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/18/2018 | -1.00 / -2.35% | 40.30 | 42.00 | 40.20 | 41.50 | 40.85 | 19.15 | 33,000 |   |  
            | 4/17/2018 | -1.30 / -2.97% | 43.00 | 43.00 | 40.00 | 42.50 | 41.73 | 19.61 | 54,400 |   |  			
            | 4/16/2018 | 0.00 / 0.00% | 41.00 | 43.90 | 40.10 | 43.80 | 43.01 | 20.21 | 33,700 |   |  
            | 4/13/2018 | 0.00 / 0.00% | 45.00 | 45.00 | 39.50 | 43.80 | 41.97 | 20.21 | 53,800 |   |  			
            | 4/12/2018 | +3.90 / +9.77% | 43.60 | 43.80 | 43.50 | 43.80 | 43.75 | 20.21 | 129,900 |   |  
            | 4/11/2018 | +3.60 / +9.92% | 39.40 | 39.90 | 39.40 | 39.90 | 39.89 | 18.41 | 115,100 |   |  			
            | 4/10/2018 | +3.30 / +10.00% | 36.30 | 36.30 | 36.30 | 36.30 | 36.30 | 16.75 | 92,300 |   |  
            | 4/9/2018 | +3.00 / +10.00% | 33.00 | 33.00 | 33.00 | 33.00 | 33.00 | 15.23 | 184,800 |   |  			
            | 4/6/2018 | +2.70 / +9.89% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 13.84 | 99,300 |   |  
            | 4/5/2018 | +6.30 / +30.00% | 27.30 | 27.30 | 27.30 | 27.30 | 27.30 | 12.60 | 1,800 |   |  |