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                    Closing price on 3/7/2017
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        |           
                
                    | Open | 30.00 |  
                    | High | 30.10 |  
                    | Low | 29.50 |  
                    | Volume | 459,320 |  
                    | Split-adjusted Price | 13.21 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/7/2017 | -0.35 / -1.17% | 30.00 | 30.10 | 29.50 | 29.65 | 29.66 | 13.21 | 459,320 |   |  
            | 3/6/2017 | +0.35 / +1.18% | 29.65 | 30.10 | 29.65 | 30.00 | 29.95 | 13.37 | 238,920 |   |  			
            | 3/3/2017 | -0.05 / -0.17% | 29.95 | 29.95 | 29.55 | 29.65 | 29.63 | 13.21 | 185,240 |   |  
            | 3/2/2017 | +0.05 / +0.17% | 30.20 | 30.20 | 29.40 | 29.70 | 29.67 | 13.23 | 273,880 |   |  			
            | 3/1/2017 | +0.05 / +0.17% | 29.60 | 30.20 | 29.60 | 29.65 | 29.85 | 13.21 | 265,270 |   |  
            | 2/28/2017 | -1.65 / -5.28% | 31.40 | 31.40 | 29.60 | 29.60 | 30.39 | 13.19 | 548,890 |   |  			
            | 2/27/2017 | -0.50 / -1.57% | 31.80 | 31.80 | 31.25 | 31.25 | 31.47 | 13.92 | 251,080 |   |  
            | 2/24/2017 | -0.05 / -0.16% | 32.40 | 32.40 | 31.70 | 31.75 | 32.06 | 14.15 | 251,720 |   |  			
            | 2/23/2017 | +0.65 / +2.09% | 31.40 | 32.50 | 31.40 | 31.80 | 31.97 | 14.17 | 740,080 |   |  
            | 2/22/2017 | -0.65 / -2.04% | 31.80 | 31.80 | 31.00 | 31.15 | 31.39 | 13.88 | 244,280 |   |  			
            | 2/21/2017 | -0.10 / -0.31% | 31.90 | 32.00 | 31.70 | 31.80 | 31.77 | 14.17 | 81,850 |   |  
            | 2/20/2017 | +0.20 / +0.63% | 31.70 | 31.95 | 31.30 | 31.90 | 31.72 | 14.21 | 157,480 |   |  			
            | 2/17/2017 | +0.20 / +0.63% | 31.50 | 31.80 | 31.30 | 31.70 | 31.58 | 14.12 | 275,490 |   |  
            | 2/16/2017 | +0.30 / +0.96% | 31.80 | 32.00 | 31.15 | 31.50 | 31.58 | 14.04 | 627,840 |   |  			
            | 2/15/2017 | -0.05 / -0.16% | 31.20 | 31.40 | 30.70 | 31.20 | 31.05 | 13.90 | 201,360 |   |  
            | 2/14/2017 | -0.35 / -1.11% | 31.85 | 31.85 | 31.00 | 31.25 | 31.33 | 13.92 | 126,910 |   |  			
            | 2/13/2017 | +0.35 / +1.12% | 31.35 | 32.00 | 31.30 | 31.60 | 31.73 | 14.08 | 178,370 |   |  
            | 2/10/2017 | +0.25 / +0.81% | 31.10 | 31.40 | 30.95 | 31.25 | 31.20 | 13.92 | 320,070 |   |  			
            | 2/9/2017 | 0.00 / 0.00% | 31.00 | 31.20 | 30.80 | 31.00 | 31.05 | 13.81 | 1,949,532 |   |  
            | 2/8/2017 | 0.00 / 0.00% | 31.00 | 31.00 | 30.00 | 31.00 | 30.85 | 13.81 | 230,130 |   |  			
            | 2/7/2017 | -0.10 / -0.32% | 31.50 | 31.75 | 30.70 | 31.00 | 31.32 | 13.81 | 431,350 |   |  
            | 2/6/2017 | +1.00 / +3.32% | 30.40 | 31.30 | 30.00 | 31.10 | 30.75 | 13.86 | 600,664 |   |  			
            | 2/3/2017 | +0.90 / +3.08% | 29.40 | 30.50 | 29.35 | 30.10 | 30.00 | 13.41 | 449,820 |   |  
            | 2/2/2017 | +0.20 / +0.69% | 29.05 | 29.20 | 28.90 | 29.20 | 29.09 | 13.01 | 435,750 |   |  			
            | 1/25/2017 | -0.10 / -0.34% | 29.20 | 29.20 | 28.85 | 29.00 | 28.95 | 12.92 | 145,930 |   |  
            | 1/24/2017 | -0.10 / -0.34% | 29.25 | 29.40 | 29.10 | 29.10 | 29.21 | 12.97 | 72,890 |   |  			
            | 1/23/2017 | +0.20 / +0.69% | 29.30 | 29.30 | 28.30 | 29.20 | 29.05 | 13.01 | 367,550 |   |  
            | 1/20/2017 | +0.25 / +0.87% | 28.95 | 29.35 | 28.95 | 29.00 | 29.22 | 12.92 | 261,260 |   |  			
            | 1/19/2017 | -0.05 / -0.17% | 28.75 | 28.85 | 28.55 | 28.75 | 28.71 | 12.81 | 160,860 |   |  
            | 1/18/2017 | -0.10 / -0.35% | 28.80 | 29.00 | 28.60 | 28.80 | 28.80 | 12.83 | 236,620 |   |  |