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                    Closing price on 1/14/2015
                 |  |  
    
        |           
                
                    | Open | 15.20 |  
                    | High | 15.20 |  
                    | Low | 15.00 |  
                    | Volume | 73,450 |  
                    | Split-adjusted Price | 10.47 |  
                
             | 
 |  SD6 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/14/2015 | -0.20 / -1.32% | 15.20 | 15.20 | 15.00 | 15.00 | 15.02 | 10.47 | 73,450 |   |  
            | 1/13/2015 | 0.00 / 0.00% | 15.20 | 15.30 | 15.00 | 15.20 | 15.15 | 10.61 | 89,200 |   |  			
            | 1/12/2015 | 0.00 / 0.00% | 15.50 | 15.50 | 15.20 | 15.20 | 15.25 | 10.61 | 137,531 |   |  
            | 1/9/2015 | +0.20 / +1.33% | 15.30 | 15.50 | 15.10 | 15.20 | 15.32 | 10.61 | 378,300 |   |  			
            | 1/8/2015 | +0.10 / +0.67% | 14.90 | 15.00 | 14.80 | 15.00 | 14.83 | 10.47 | 92,600 |   |  
            | 1/7/2015 | +0.10 / +0.68% | 14.80 | 15.00 | 14.80 | 14.90 | 14.87 | 10.40 | 99,400 |   |  			
            | 1/6/2015 | +0.20 / +1.37% | 14.50 | 14.80 | 14.40 | 14.80 | 14.56 | 10.33 | 95,427 |   |  
            | 1/5/2015 | -0.40 / -2.67% | 15.00 | 15.00 | 14.60 | 14.60 | 14.72 | 10.19 | 14,000 |   |  			
            | 12/31/2014 | +0.40 / +2.74% | 14.60 | 15.00 | 14.60 | 15.00 | 14.87 | 10.47 | 89,688 |   |  
            | 12/30/2014 | +0.30 / +2.10% | 14.50 | 14.60 | 14.20 | 14.60 | 14.42 | 10.19 | 47,652 |   |  			
            | 12/29/2014 | -0.50 / -3.38% | 14.70 | 14.70 | 14.10 | 14.30 | 14.50 | 9.98 | 97,000 |   |  
            | 12/26/2014 | 0.00 / 0.00% | 14.70 | 14.80 | 14.50 | 14.80 | 14.59 | 10.33 | 80,600 |   |  			
            | 12/25/2014 | 0.00 / 0.00% | 14.80 | 15.20 | 14.80 | 14.80 | 14.91 | 10.33 | 231,500 |   |  
            | 12/24/2014 | +0.50 / +3.50% | 14.50 | 14.80 | 14.50 | 14.80 | 14.62 | 10.33 | 128,600 |   |  			
            | 12/23/2014 | +0.10 / +0.70% | 14.30 | 14.50 | 14.10 | 14.30 | 14.35 | 9.98 | 174,400 |   |  
            | 12/22/2014 | +0.10 / +0.71% | 14.00 | 14.50 | 14.00 | 14.20 | 14.19 | 9.91 | 74,500 |   |  			
            | 12/19/2014 | -0.20 / -1.40% | 14.20 | 14.20 | 13.90 | 14.10 | 14.03 | 9.84 | 69,620 |   |  
            | 12/18/2014 | +0.30 / +2.14% | 14.00 | 14.30 | 14.00 | 14.30 | 14.12 | 9.98 | 41,901 |   |  			
            | 12/17/2014 | -0.40 / -2.78% | 14.40 | 14.40 | 13.50 | 14.00 | 13.97 | 9.77 | 186,600 |   |  
            | 12/16/2014 | -0.20 / -1.37% | 14.40 | 14.60 | 14.30 | 14.40 | 14.45 | 10.05 | 114,498 |   |  			
            | 12/15/2014 | 0.00 / 0.00% | 14.60 | 14.70 | 14.60 | 14.60 | 14.68 | 10.19 | 67,200 |   |  
            | 12/12/2014 | -0.10 / -0.68% | 14.70 | 14.70 | 14.60 | 14.60 | 14.69 | 10.19 | 20,000 |   |  			
            | 12/11/2014 | -0.10 / -0.68% | 14.70 | 14.70 | 14.60 | 14.70 | 14.63 | 10.26 | 59,600 |   |  
            | 12/10/2014 | +0.40 / +2.78% | 14.60 | 14.80 | 14.30 | 14.80 | 14.48 | 10.33 | 164,930 |   |  			
            | 12/9/2014 | -0.60 / -4.00% | 14.90 | 14.90 | 14.40 | 14.40 | 14.69 | 10.05 | 239,660 |   |  
            | 12/8/2014 | -0.10 / -0.66% | 15.30 | 15.30 | 14.90 | 15.00 | 15.09 | 10.47 | 172,500 |   |  			
            | 12/5/2014 | -0.20 / -1.31% | 15.10 | 15.30 | 15.10 | 15.10 | 15.19 | 10.54 | 121,992 |   |  
            | 12/4/2014 | +0.20 / +1.32% | 15.10 | 15.40 | 15.10 | 15.30 | 15.20 | 10.68 | 185,400 |   |  			
            | 12/3/2014 | 0.00 / 0.00% | 15.10 | 15.10 | 15.00 | 15.10 | 15.08 | 10.54 | 62,100 |   |  
            | 12/2/2014 | +0.10 / +0.67% | 15.00 | 15.10 | 14.90 | 15.10 | 14.96 | 10.54 | 172,503 |   |  |