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            | 
                    Closing price on 4/20/2017
                 |  |  
    
        |           
                
                    | Open | 30.70 |  
                    | High | 30.70 |  
                    | Low | 30.20 |  
                    | Volume | 214,000 |  
                    | Split-adjusted Price | 13.50 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 3/24/2017 | +0.10 / +0.31% | 32.60 | 32.60 | 32.20 | 32.40 | 32.41 | 14.44 | 548,660 |   |  
            | 3/23/2017 | +1.00 / +3.19% | 31.20 | 32.60 | 31.20 | 32.30 | 32.16 | 14.39 | 916,420 |   |  			
            | 3/22/2017 | +0.55 / +1.79% | 30.50 | 31.60 | 30.50 | 31.30 | 31.35 | 13.95 | 499,630 |   |  
            | 3/21/2017 | -0.20 / -0.65% | 30.95 | 31.30 | 30.75 | 30.75 | 30.98 | 13.70 | 334,870 |   |  			
            | 3/20/2017 | +0.65 / +2.15% | 30.50 | 30.95 | 30.35 | 30.95 | 30.73 | 13.79 | 273,560 |   |  
            | 3/17/2017 | 0.00 / 0.00% | 30.45 | 30.50 | 30.30 | 30.30 | 30.31 | 13.50 | 1,135,410 |   |  			
            | 3/16/2017 | +0.30 / +1.00% | 30.00 | 30.50 | 30.00 | 30.30 | 30.34 | 13.50 | 231,620 |   |  
            | 3/15/2017 | +0.10 / +0.33% | 30.00 | 30.00 | 29.85 | 30.00 | 29.92 | 13.37 | 685,990 |   |  			
            | 3/14/2017 | -0.20 / -0.66% | 30.10 | 30.10 | 29.80 | 29.90 | 29.88 | 13.32 | 153,220 |   |  
            | 3/13/2017 | +0.10 / +0.33% | 29.90 | 30.20 | 29.75 | 30.10 | 29.91 | 13.41 | 191,020 |   |  			
            | 3/10/2017 | +0.10 / +0.33% | 29.85 | 30.20 | 29.70 | 30.00 | 29.94 | 13.37 | 161,370 |   |  
            | 3/9/2017 | -0.05 / -0.17% | 29.90 | 30.00 | 29.75 | 29.90 | 29.89 | 13.32 | 68,140 |   |  |