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                    Closing price on 12/14/2015
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                    | Open | 9.80 |  
                    | High | 10.00 |  
                    | Low | 9.80 |  
                    | Volume | 300 |  
                    | Split-adjusted Price | 6.80 |  
                
             | 
 |  NST Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/14/2015 | 0.00 / 0.00% | 9.80 | 10.00 | 9.80 | 10.00 | 9.80 | 6.80 | 300 |   |  
            | 12/11/2015 | +0.10 / +1.01% | 10.40 | 10.40 | 9.00 | 10.00 | 9.15 | 6.80 | 1,700 |   |  			
            | 12/10/2015 | 0.00 / 0.00% | 9.90 | 9.90 | 9.90 | 9.90 | 9.90 | 6.73 | 0 |   |  
            | 12/9/2015 | -0.50 / -4.81% | 9.60 | 9.90 | 9.50 | 9.90 | 9.56 | 6.73 | 1,300 |   |  			
            | 12/8/2015 | 0.00 / 0.00% | 10.40 | 10.40 | 10.40 | 10.40 | 10.40 | 7.07 | 0 |   |  
            | 12/7/2015 | -0.50 / -4.59% | 9.90 | 10.50 | 9.90 | 10.40 | 10.25 | 7.07 | 1,100 |   |  			
            | 12/4/2015 | 0.00 / 0.00% | 10.90 | 10.90 | 10.90 | 10.90 | 10.90 | 7.42 | 0 |   |  
            | 12/3/2015 | 0.00 / 0.00% | 10.90 | 10.90 | 10.90 | 10.90 | 10.90 | 7.42 | 240 |   |  			
            | 12/2/2015 | +0.40 / +3.81% | 10.90 | 10.90 | 10.90 | 10.90 | 10.90 | 7.42 | 100 |   |  
            | 12/1/2015 | 0.00 / 0.00% | 10.50 | 10.50 | 10.50 | 10.50 | 10.50 | 7.14 | 0 |   |  			
            | 11/30/2015 | +0.40 / +3.96% | 10.00 | 10.50 | 10.00 | 10.50 | 10.10 | 7.14 | 940 |   |  
            | 11/27/2015 | -0.50 / -4.72% | 9.60 | 10.40 | 9.60 | 10.10 | 9.93 | 6.87 | 3,700 |   |  			
            | 11/26/2015 | +0.40 / +3.92% | 10.00 | 10.60 | 10.00 | 10.60 | 10.23 | 7.21 | 300 |   |  
            | 11/25/2015 | +0.60 / +6.25% | 10.20 | 10.20 | 10.20 | 10.20 | 10.20 | 6.94 | 100 |   |  			
            | 11/24/2015 | -1.00 / -9.43% | 9.60 | 9.60 | 9.60 | 9.60 | 9.60 | 6.53 | 100 |   |  
            | 11/23/2015 | +0.60 / +6.00% | 9.90 | 10.60 | 9.50 | 10.60 | 9.59 | 7.21 | 2,300 |   |  			
            | 11/20/2015 | +0.10 / +1.01% | 9.90 | 10.50 | 9.50 | 10.00 | 9.58 | 6.80 | 2,300 |   |  
            | 11/19/2015 | -0.30 / -2.94% | 10.00 | 10.00 | 9.20 | 9.90 | 9.40 | 6.73 | 4,900 |   |  			
            | 11/18/2015 | -0.80 / -7.27% | 10.80 | 10.80 | 10.20 | 10.20 | 10.67 | 6.94 | 1,800 |   |  
            | 11/17/2015 | +0.20 / +1.85% | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 7.48 | 100 |   |  			
            | 11/16/2015 | +0.90 / +9.09% | 10.80 | 10.80 | 10.80 | 10.80 | 10.80 | 7.35 | 100 |   |  
            | 11/13/2015 | +0.40 / +4.21% | 10.30 | 10.30 | 8.60 | 9.90 | 8.68 | 6.73 | 7,500 |   |  			
            | 11/12/2015 | -0.40 / -4.04% | 10.30 | 10.30 | 9.50 | 9.50 | 10.30 | 6.46 | 300 |   |  
            | 11/11/2015 | -0.30 / -2.94% | 9.90 | 9.90 | 9.90 | 9.90 | 9.90 | 6.73 | 100 |   |  			
            | 11/10/2015 | -0.80 / -7.27% | 11.30 | 11.30 | 10.00 | 10.20 | 10.19 | 6.94 | 1,500 |   |  
            | 11/9/2015 | 0.00 / 0.00% | 11.60 | 11.80 | 9.90 | 11.00 | 10.73 | 7.48 | 4,500 |   |  			
            | 11/6/2015 | +0.80 / +7.84% | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 7.48 | 100 |   |  
            | 11/5/2015 | 0.00 / 0.00% | 11.00 | 11.00 | 10.20 | 10.20 | 10.30 | 6.94 | 800 |   |  			
            | 11/4/2015 | -0.10 / -0.97% | 11.00 | 11.00 | 9.30 | 10.20 | 9.47 | 6.94 | 4,000 |   |  
            | 11/3/2015 | -1.10 / -9.65% | 10.30 | 10.30 | 10.30 | 10.30 | 10.30 | 7.01 | 2,100 |   |  |