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                    Closing price on 10/2/2017
                 |  |  
    
        |           
                
                    | Open | 26.60 |  
                    | High | 26.80 |  
                    | Low | 26.40 |  
                    | Volume | 217,652 |  
                    | Split-adjusted Price | 12.52 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/2/2017 | +0.05 / +0.19% | 26.60 | 26.80 | 26.40 | 26.60 | 26.53 | 12.52 | 217,652 |   |  
            | 9/29/2017 | +0.05 / +0.19% | 26.30 | 26.70 | 26.30 | 26.55 | 26.52 | 12.50 | 158,492 |   |  			
            | 9/28/2017 | -0.15 / -0.56% | 26.65 | 26.70 | 26.30 | 26.50 | 26.60 | 12.48 | 217,352 |   |  
            | 9/27/2017 | +0.45 / +1.72% | 26.30 | 26.65 | 26.10 | 26.65 | 26.46 | 12.55 | 350,622 |   |  			
            | 9/26/2017 | +0.30 / +1.16% | 26.10 | 26.20 | 25.80 | 26.20 | 26.01 | 12.34 | 121,582 |   |  
            | 9/25/2017 | 0.00 / 0.00% | 25.90 | 25.95 | 25.85 | 25.90 | 25.90 | 12.19 | 145,932 |   |  			
            | 9/22/2017 | -0.20 / -0.77% | 26.10 | 26.25 | 25.80 | 25.90 | 25.97 | 12.19 | 326,372 |   |  
            | 9/21/2017 | +0.65 / +2.55% | 25.50 | 26.10 | 25.45 | 26.10 | 25.73 | 12.29 | 233,582 |   |  			
            | 9/20/2017 | +0.25 / +0.99% | 25.20 | 25.45 | 25.15 | 25.45 | 25.33 | 11.98 | 462,592 |   |  
            | 9/19/2017 | -0.10 / -0.40% | 25.30 | 25.30 | 25.00 | 25.20 | 25.17 | 11.86 | 211,732 |   |  			
            | 9/18/2017 | -0.20 / -0.78% | 25.50 | 25.50 | 25.25 | 25.30 | 25.34 | 11.91 | 147,170 |   |  
            | 9/15/2017 | +0.45 / +1.80% | 25.05 | 25.50 | 25.00 | 25.50 | 25.37 | 12.01 | 461,430 |   |  			
            | 9/14/2017 | 0.00 / 0.00% | 25.00 | 25.20 | 24.90 | 25.05 | 25.05 | 11.79 | 521,040 |   |  
            | 9/13/2017 | +0.05 / +0.20% | 25.20 | 25.20 | 24.90 | 25.05 | 24.99 | 11.79 | 568,170 |   |  			
            | 9/12/2017 | +0.40 / +1.63% | 24.90 | 25.10 | 24.70 | 25.00 | 24.99 | 11.77 | 360,680 |   |  
            | 9/11/2017 | -0.70 / -2.77% | 25.10 | 25.30 | 24.50 | 24.60 | 24.68 | 11.58 | 725,260 |   |  			
            | 9/8/2017 | -0.45 / -1.75% | 25.75 | 25.75 | 25.30 | 25.30 | 25.53 | 11.91 | 509,470 |   |  
            | 9/7/2017 | -0.05 / -0.19% | 25.50 | 26.00 | 25.50 | 25.75 | 25.76 | 12.12 | 407,660 |   |  			
            | 9/6/2017 | 0.00 / 0.00% | 25.80 | 25.90 | 25.75 | 25.80 | 25.80 | 12.15 | 442,470 |   |  
            | 9/5/2017 | +0.60 / +2.38% | 25.50 | 26.10 | 25.35 | 25.80 | 25.80 | 12.15 | 527,390 |   |  			
            | 9/1/2017 | -0.70 / -2.70% | 25.90 | 25.90 | 25.00 | 25.20 | 25.38 | 11.86 | 907,910 |   |  
            | 8/31/2017 | -0.10 / -0.38% | 26.00 | 26.05 | 25.90 | 25.90 | 25.99 | 12.19 | 403,470 |   |  			
            | 8/30/2017 | -0.20 / -0.76% | 26.20 | 26.30 | 25.90 | 26.00 | 26.07 | 12.24 | 639,760 |   |  
            | 8/29/2017 | -0.20 / -0.76% | 26.40 | 26.50 | 26.20 | 26.20 | 26.35 | 12.34 | 538,430 |   |  			
            | 8/28/2017 | +0.05 / +0.19% | 26.30 | 26.50 | 26.30 | 26.40 | 26.34 | 12.43 | 367,710 |   |  
            | 8/25/2017 | -0.20 / -0.75% | 27.10 | 27.10 | 26.35 | 26.35 | 26.47 | 12.41 | 309,690 |   |  			
            | 8/24/2017 | -0.45 / -1.67% | 26.90 | 27.00 | 26.55 | 26.55 | 26.75 | 12.50 | 298,750 |   |  
            | 8/23/2017 | 0.00 / 0.00% | 27.00 | 27.30 | 26.80 | 27.00 | 26.94 | 12.71 | 296,660 |   |  			
            | 8/22/2017 | 0.00 / 0.00% | 27.35 | 27.35 | 26.95 | 27.00 | 27.01 | 12.71 | 367,400 |   |  
            | 8/21/2017 | 0.00 / 0.00% | 27.00 | 27.20 | 26.95 | 27.00 | 27.00 | 12.71 | 450,320 |   |  |