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            | 
                    Closing price on 7/28/2017
                 |  |  
    
        |           
                
                    | Open | 28.05 |  
                    | High | 28.40 |  
                    | Low | 28.05 |  
                    | Volume | 485,690 |  
                    | Split-adjusted Price | 13.35 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/28/2017 | +0.15 / +0.53% | 28.05 | 28.40 | 28.05 | 28.35 | 28.30 | 13.35 | 485,690 |   |  
            | 7/27/2017 | -0.20 / -0.70% | 28.40 | 28.40 | 28.10 | 28.20 | 28.23 | 13.28 | 242,290 |   |  			
            | 7/26/2017 | +0.15 / +0.53% | 28.25 | 28.80 | 28.25 | 28.40 | 28.46 | 13.37 | 373,580 |   |  
            | 7/25/2017 | +0.15 / +0.53% | 27.80 | 28.25 | 27.60 | 28.25 | 27.94 | 13.30 | 296,450 |   |  			
            | 7/24/2017 | +0.60 / +2.18% | 27.50 | 28.20 | 27.50 | 28.10 | 27.72 | 13.23 | 734,440 |   |  
            | 7/21/2017 | -0.50 / -1.79% | 27.50 | 28.10 | 27.50 | 27.50 | 27.68 | 12.95 | 1,032,080 |   |  			
            | 7/20/2017 | +0.80 / +2.94% | 27.20 | 28.00 | 27.20 | 28.00 | 27.75 | 13.18 | 471,720 |   |  
            | 7/19/2017 | -0.15 / -0.55% | 27.90 | 27.90 | 27.10 | 27.20 | 27.27 | 12.81 | 710,930 |   |  			
            | 7/18/2017 | -0.60 / -2.15% | 27.70 | 28.00 | 27.35 | 27.35 | 27.57 | 12.88 | 879,340 |   |  
            | 7/17/2017 | -0.75 / -2.61% | 28.70 | 28.70 | 27.80 | 27.95 | 28.16 | 13.16 | 657,260 |   |  			
            | 7/14/2017 | 0.00 / 0.00% | 28.60 | 28.80 | 28.50 | 28.70 | 28.61 | 13.51 | 334,910 |   |  
            | 7/13/2017 | 0.00 / 0.00% | 28.60 | 28.75 | 28.55 | 28.70 | 28.64 | 13.51 | 398,570 |   |  			
            | 7/12/2017 | +0.10 / +0.35% | 28.55 | 28.70 | 28.40 | 28.70 | 28.63 | 13.51 | 243,570 |   |  
            | 7/11/2017 | -0.25 / -0.87% | 28.60 | 28.80 | 28.30 | 28.60 | 28.48 | 13.47 | 499,200 |   |  			
            | 7/10/2017 | -0.40 / -1.37% | 29.30 | 29.30 | 28.30 | 28.85 | 28.72 | 13.58 | 396,580 |   |  
            | 7/7/2017 | -0.40 / -1.35% | 29.55 | 29.65 | 29.25 | 29.25 | 29.43 | 13.77 | 352,060 |   |  			
            | 7/6/2017 | +0.20 / +0.68% | 29.40 | 29.65 | 29.40 | 29.65 | 29.50 | 13.96 | 370,180 |   |  
            | 7/5/2017 | 0.00 / 0.00% | 29.50 | 29.75 | 29.00 | 29.45 | 29.47 | 13.87 | 270,320 |   |  			
            | 7/4/2017 | +0.35 / +1.20% | 29.10 | 29.45 | 29.10 | 29.45 | 29.31 | 13.87 | 474,550 |   |  
            | 7/3/2017 | +0.55 / +1.93% | 28.60 | 29.10 | 28.60 | 29.10 | 28.70 | 13.70 | 591,360 |   |  			
            | 6/30/2017 | +0.05 / +0.18% | 28.50 | 28.75 | 28.50 | 28.55 | 28.58 | 13.44 | 327,740 |   |  
            | 6/29/2017 | -0.30 / -1.04% | 28.80 | 29.00 | 28.50 | 28.50 | 28.60 | 13.42 | 434,930 |   |  			
            | 6/28/2017 | -0.20 / -0.69% | 29.00 | 29.00 | 28.75 | 28.80 | 28.83 | 13.56 | 379,070 |   |  
            | 6/27/2017 | 0.00 / 0.00% | 28.85 | 29.15 | 28.85 | 29.00 | 28.94 | 13.65 | 411,780 |   |  			
            | 6/26/2017 | -0.30 / -1.02% | 29.30 | 29.40 | 28.75 | 29.00 | 29.04 | 13.65 | 728,870 |   |  
            | 6/23/2017 | -0.20 / -0.68% | 29.25 | 29.50 | 29.00 | 29.30 | 29.23 | 13.79 | 452,120 |   |  			
            | 6/22/2017 | 0.00 / 0.00% | 29.50 | 29.70 | 29.45 | 29.50 | 29.52 | 13.89 | 771,970 |   |  
            | 6/21/2017 | -0.20 / -0.67% | 29.40 | 29.70 | 29.30 | 29.50 | 29.47 | 13.89 | 1,032,290 |   |  			
            | 6/20/2017 | +0.50 / +1.71% | 29.45 | 29.75 | 29.45 | 29.70 | 29.67 | 13.98 | 703,280 |   |  
            | 6/19/2017 | +0.60 / +2.10% | 29.10 | 29.70 | 28.75 | 29.20 | 29.16 | 13.75 | 822,370 |   |  |