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                    Closing price on 9/15/2015
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                    | Open | 12.20 |  
                    | High | 12.40 |  
                    | Low | 12.20 |  
                    | Volume | 21,000 |  
                    | Split-adjusted Price | 9.73 |  
                
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 |  SD6 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/15/2015 | -0.10 / -0.81% | 12.20 | 12.40 | 12.20 | 12.30 | 12.29 | 9.73 | 21,000 |   |  
            | 9/14/2015 | -0.20 / -1.59% | 12.30 | 12.40 | 12.30 | 12.40 | 12.33 | 9.81 | 14,888 |   |  			
            | 9/11/2015 | -0.10 / -0.79% | 12.40 | 12.60 | 12.40 | 12.60 | 12.40 | 9.97 | 102,500 |   |  
            | 9/10/2015 | 0.00 / 0.00% | 12.30 | 12.70 | 12.30 | 12.70 | 12.40 | 10.05 | 36,380 |   |  			
            | 9/9/2015 | 0.00 / 0.00% | 12.50 | 12.70 | 12.40 | 12.70 | 12.44 | 10.05 | 21,482 |   |  
            | 9/8/2015 | 0.00 / 0.00% | 12.40 | 12.70 | 12.40 | 12.70 | 12.45 | 10.05 | 15,400 |   |  			
            | 9/7/2015 | 0.00 / 0.00% | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 10.05 | 0 |   |  
            | 9/4/2015 | 0.00 / 0.00% | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 10.05 | 300 |   |  			
            | 9/3/2015 | -0.10 / -0.78% | 12.80 | 12.80 | 12.30 | 12.70 | 12.39 | 10.05 | 36,300 |   |  
            | 9/1/2015 | +0.10 / +0.79% | 12.50 | 12.90 | 12.50 | 12.80 | 12.75 | 10.12 | 16,100 |   |  			
            | 8/31/2015 | 0.00 / 0.00% | 12.60 | 12.70 | 12.50 | 12.70 | 12.54 | 10.05 | 6,800 |   |  
            | 8/28/2015 | +0.10 / +0.79% | 12.60 | 12.70 | 12.40 | 12.70 | 12.56 | 10.05 | 14,250 |   |  			
            | 8/27/2015 | -0.10 / -0.79% | 12.70 | 12.80 | 12.60 | 12.60 | 12.71 | 9.97 | 11,400 |   |  
            | 8/26/2015 | +0.40 / +3.25% | 11.30 | 12.70 | 11.30 | 12.70 | 12.50 | 10.05 | 38,980 |   |  			
            | 8/25/2015 | +0.40 / +3.36% | 11.90 | 12.60 | 11.90 | 12.30 | 12.19 | 9.73 | 24,700 |   |  
            | 8/24/2015 | -0.90 / -7.03% | 12.50 | 12.50 | 11.90 | 11.90 | 12.13 | 9.41 | 57,300 |   |  			
            | 8/21/2015 | -0.20 / -1.54% | 13.00 | 13.00 | 12.70 | 12.80 | 12.84 | 10.12 | 20,700 |   |  
            | 8/20/2015 | -0.10 / -0.76% | 13.00 | 13.00 | 12.90 | 13.00 | 12.97 | 10.28 | 20,605 |   |  			
            | 8/19/2015 | -0.10 / -0.76% | 13.10 | 13.10 | 13.00 | 13.10 | 13.03 | 10.36 | 26,000 |   |  
            | 8/18/2015 | +0.10 / +0.76% | 13.10 | 13.20 | 13.00 | 13.20 | 13.09 | 10.44 | 16,335 |   |  			
            | 8/17/2015 | -0.10 / -0.76% | 13.20 | 13.20 | 13.10 | 13.10 | 13.11 | 10.36 | 13,270 |   |  
            | 8/14/2015 | 0.00 / 0.00% | 13.30 | 13.30 | 13.00 | 13.20 | 13.15 | 10.44 | 34,100 |   |  			
            | 8/13/2015 | -0.20 / -1.49% | 13.20 | 13.30 | 13.20 | 13.20 | 13.24 | 10.44 | 33,500 |   |  
            | 8/12/2015 | -0.20 / -1.47% | 13.40 | 13.50 | 13.40 | 13.40 | 13.44 | 10.60 | 14,800 |   |  			
            | 8/11/2015 | +0.10 / +0.74% | 13.50 | 13.60 | 13.40 | 13.60 | 13.50 | 10.76 | 17,582 |   |  
            | 8/10/2015 | 0.00 / 0.00% | 13.50 | 13.60 | 13.50 | 13.50 | 13.50 | 10.68 | 21,600 |   |  			
            | 8/7/2015 | +0.10 / +0.75% | 13.30 | 13.50 | 13.20 | 13.50 | 13.27 | 10.68 | 59,840 |   |  
            | 8/6/2015 | +0.10 / +0.75% | 13.30 | 13.40 | 13.20 | 13.40 | 13.26 | 10.60 | 54,713 |   |  			
            | 8/5/2015 | -0.10 / -0.75% | 13.40 | 13.40 | 13.30 | 13.30 | 13.30 | 10.52 | 85,400 |   |  
            | 8/4/2015 | 0.00 / 0.00% | 13.40 | 13.40 | 13.30 | 13.40 | 13.31 | 10.60 | 7,300 |   |  |