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                    Closing price on 2/6/2018
                 |  |  
    
        |           
                
                    | Open | 33.30 |  
                    | High | 33.30 |  
                    | Low | 31.10 |  
                    | Volume | 222,270 |  
                    | Split-adjusted Price | 16.11 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/6/2018 | -0.30 / -0.90% | 33.30 | 33.30 | 31.10 | 33.00 | 32.48 | 16.11 | 222,270 |   |  
            | 2/5/2018 | -0.15 / -0.45% | 33.45 | 33.60 | 32.90 | 33.30 | 33.30 | 16.25 | 292,720 |   |  			
            | 2/2/2018 | +0.45 / +1.36% | 33.50 | 33.70 | 33.10 | 33.45 | 33.36 | 16.33 | 242,400 |   |  
            | 2/1/2018 | -0.10 / -0.30% | 33.00 | 33.55 | 33.00 | 33.00 | 33.04 | 16.11 | 339,560 |   |  			
            | 1/31/2018 | -0.90 / -2.65% | 33.00 | 33.80 | 33.00 | 33.10 | 33.06 | 16.15 | 193,630 |   |  
            | 1/30/2018 | +1.50 / +4.62% | 32.50 | 34.00 | 32.50 | 34.00 | 33.55 | 16.59 | 241,160 |   |  			
            | 1/29/2018 | -2.00 / -5.80% | 33.60 | 35.20 | 32.50 | 32.50 | 33.14 | 15.86 | 383,020 |   |  
            | 1/26/2018 | +1.70 / +5.18% | 32.30 | 35.00 | 32.30 | 34.50 | 34.20 | 16.84 | 140,810 |   |  			
            | 1/25/2018 | -2.15 / -6.15% | 34.55 | 34.80 | 32.80 | 32.80 | 33.21 | 16.01 | 504,340 |   |  
            | 1/22/2018 | -0.85 / -2.37% | 35.80 | 35.80 | 34.10 | 34.95 | 34.67 | 17.06 | 138,890 |   |  			
            | 1/19/2018 | 0.00 / 0.00% | 35.80 | 36.20 | 35.30 | 35.80 | 35.80 | 17.47 | 324,960 |   |  
            | 1/18/2018 | +0.20 / +0.56% | 35.60 | 35.80 | 34.85 | 35.80 | 35.07 | 17.47 | 300,280 |   |  			
            | 1/17/2018 | -0.60 / -1.66% | 36.20 | 36.20 | 34.90 | 35.60 | 35.30 | 17.38 | 822,660 |   |  
            | 1/16/2018 | -0.35 / -0.96% | 36.55 | 36.55 | 35.80 | 36.20 | 36.13 | 17.67 | 166,570 |   |  			
            | 1/15/2018 | +0.35 / +0.97% | 36.50 | 36.70 | 36.00 | 36.55 | 36.35 | 17.84 | 1,472,590 |   |  
            | 1/12/2018 | +1.30 / +3.72% | 34.95 | 36.45 | 34.95 | 36.20 | 35.73 | 17.67 | 859,620 |   |  			
            | 1/11/2018 | +0.30 / +0.87% | 34.60 | 34.90 | 34.30 | 34.90 | 34.78 | 17.03 | 189,410 |   |  
            | 1/10/2018 | +0.60 / +1.76% | 34.30 | 34.70 | 34.20 | 34.60 | 34.53 | 16.89 | 282,100 |   |  			
            | 1/9/2018 | 0.00 / 0.00% | 33.60 | 34.10 | 33.60 | 34.00 | 33.99 | 16.59 | 158,460 |   |  
            | 1/8/2018 | -0.10 / -0.29% | 33.80 | 34.00 | 33.10 | 34.00 | 33.76 | 16.59 | 122,220 |   |  			
            | 1/5/2018 | -0.60 / -1.73% | 35.00 | 35.00 | 34.00 | 34.10 | 34.13 | 16.64 | 238,420 |   |  
            | 1/4/2018 | -0.25 / -0.72% | 33.70 | 35.00 | 33.70 | 34.70 | 34.65 | 16.94 | 176,840 |   |  			
            | 1/3/2018 | +0.75 / +2.19% | 34.20 | 35.00 | 34.20 | 34.95 | 34.80 | 17.06 | 298,380 |   |  
            | 1/2/2018 | +0.70 / +2.09% | 33.90 | 34.20 | 33.30 | 34.20 | 33.83 | 16.69 | 287,820 |   |  			
            | 12/29/2017 | +1.20 / +3.72% | 32.40 | 33.60 | 32.30 | 33.50 | 33.22 | 16.35 | 378,040 |   |  
            | 12/28/2017 | -0.50 / -1.52% | 32.20 | 32.80 | 32.20 | 32.30 | 32.48 | 15.76 | 37,440 |   |  			
            | 12/27/2017 | +0.20 / +0.61% | 32.60 | 32.90 | 32.40 | 32.80 | 32.77 | 16.01 | 50,170 |   |  
            | 12/26/2017 | +0.60 / +1.88% | 32.00 | 32.60 | 32.00 | 32.60 | 32.30 | 15.91 | 98,440 |   |  			
            | 12/25/2017 | -0.90 / -2.74% | 32.30 | 33.25 | 32.00 | 32.00 | 32.42 | 15.62 | 45,530 |   |  
            | 12/22/2017 | +0.40 / +1.23% | 33.35 | 33.35 | 32.20 | 32.90 | 32.65 | 16.06 | 45,200 |   |  |