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                    Closing price on 5/10/2017
                 |  |  
    
        |           
                
                    | Open | 30.20 |  
                    | High | 31.00 |  
                    | Low | 30.20 |  
                    | Volume | 812,660 |  
                    | Split-adjusted Price | 13.81 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/10/2017 | +1.00 / +3.33% | 30.20 | 31.00 | 30.20 | 31.00 | 30.58 | 13.81 | 812,660 |   |  
            | 5/9/2017 | -0.10 / -0.33% | 30.20 | 30.25 | 29.90 | 30.00 | 30.02 | 13.37 | 255,040 |   |  			
            | 5/8/2017 | +1.20 / +4.15% | 29.10 | 30.20 | 29.10 | 30.10 | 29.78 | 13.41 | 613,300 |   |  
            | 5/5/2017 | -0.20 / -0.69% | 29.10 | 29.10 | 28.80 | 28.90 | 28.90 | 12.88 | 595,780 |   |  			
            | 5/4/2017 | -0.85 / -2.84% | 29.95 | 29.95 | 28.90 | 29.10 | 29.26 | 12.97 | 509,390 |   |  
            | 5/3/2017 | -0.05 / -0.17% | 30.10 | 30.10 | 29.80 | 29.95 | 29.98 | 13.35 | 249,720 |   |  			
            | 4/28/2017 | -0.50 / -1.64% | 30.30 | 30.30 | 29.90 | 30.00 | 30.02 | 13.37 | 396,590 |   |  
            | 4/27/2017 | +0.30 / +0.99% | 30.55 | 30.70 | 30.20 | 30.50 | 30.49 | 13.59 | 68,130 |   |  			
            | 4/26/2017 | -0.05 / -0.17% | 30.40 | 30.60 | 30.20 | 30.20 | 30.34 | 13.46 | 222,340 |   |  
            | 4/25/2017 | -0.10 / -0.33% | 30.25 | 30.50 | 30.25 | 30.25 | 30.27 | 13.48 | 53,260 |   |  			
            | 4/24/2017 | -0.25 / -0.82% | 30.60 | 30.60 | 30.00 | 30.35 | 30.37 | 13.52 | 32,530 |   |  
            | 4/21/2017 | +0.30 / +0.99% | 30.40 | 30.70 | 30.20 | 30.60 | 30.35 | 13.63 | 150,380 |   |  			
            | 4/20/2017 | -0.40 / -1.30% | 30.70 | 30.70 | 30.20 | 30.30 | 30.33 | 13.50 | 214,000 |   |  
            | 4/19/2017 | +0.50 / +1.66% | 30.20 | 30.80 | 30.20 | 30.70 | 30.73 | 13.68 | 26,130 |   |  			
            | 4/18/2017 | -0.70 / -2.27% | 30.05 | 30.65 | 30.05 | 30.20 | 30.26 | 13.46 | 356,120 |   |  
            | 4/17/2017 | +0.10 / +0.32% | 30.90 | 31.10 | 30.20 | 30.90 | 30.77 | 13.77 | 176,250 |   |  			
            | 4/14/2017 | -0.50 / -1.60% | 31.50 | 31.50 | 30.80 | 30.80 | 31.22 | 13.72 | 191,560 |   |  
            | 4/13/2017 | -0.20 / -0.63% | 31.55 | 31.55 | 31.20 | 31.30 | 31.38 | 13.95 | 108,150 |   |  			
            | 4/12/2017 | 0.00 / 0.00% | 31.55 | 31.85 | 31.50 | 31.50 | 31.70 | 14.04 | 196,500 |   |  
            | 4/11/2017 | +0.10 / +0.32% | 31.40 | 31.60 | 31.40 | 31.50 | 31.50 | 14.04 | 79,580 |   |  			
            | 4/10/2017 | -0.35 / -1.10% | 31.50 | 31.70 | 31.30 | 31.40 | 31.40 | 13.99 | 88,110 |   |  
            | 4/7/2017 | -0.20 / -0.63% | 31.90 | 31.90 | 31.50 | 31.75 | 31.78 | 14.15 | 58,780 |   |  			
            | 4/5/2017 | +0.05 / +0.16% | 31.90 | 31.95 | 31.80 | 31.95 | 31.88 | 14.24 | 493,630 |   |  
            | 4/4/2017 | +0.15 / +0.47% | 31.70 | 31.95 | 31.70 | 31.90 | 31.86 | 14.21 | 530,770 |   |  			
            | 4/3/2017 | +0.25 / +0.79% | 31.10 | 31.75 | 31.10 | 31.75 | 31.63 | 14.15 | 316,280 |   |  
            | 3/31/2017 | -0.45 / -1.41% | 32.20 | 32.20 | 31.50 | 31.50 | 31.74 | 14.04 | 88,910 |   |  			
            | 3/30/2017 | +0.95 / +3.06% | 31.40 | 32.00 | 31.30 | 31.95 | 31.83 | 14.24 | 412,490 |   |  
            | 3/29/2017 | -0.40 / -1.27% | 31.20 | 31.25 | 30.85 | 31.00 | 31.07 | 13.81 | 461,470 |   |  			
            | 3/28/2017 | -0.50 / -1.57% | 31.60 | 31.80 | 31.20 | 31.40 | 31.47 | 13.99 | 299,310 |   |  
            | 3/27/2017 | -0.50 / -1.54% | 32.45 | 32.45 | 31.70 | 31.90 | 31.90 | 14.21 | 329,660 |   |  |