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                    Closing price on 7/23/2014
                 |  |  
    
        |           
                
                    | Open | 13.90 |  
                    | High | 13.90 |  
                    | Low | 13.60 |  
                    | Volume | 131,300 |  
                    | Split-adjusted Price | 9.56 |  
                
             | 
 |  SD6 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/23/2014 | 0.00 / 0.00% | 13.90 | 13.90 | 13.60 | 13.70 | 13.76 | 9.56 | 131,300 |   |  
            | 7/22/2014 | 0.00 / 0.00% | 13.80 | 13.80 | 13.70 | 13.70 | 13.72 | 9.56 | 143,320 |   |  			
            | 7/21/2014 | -0.20 / -1.44% | 13.90 | 13.90 | 13.60 | 13.70 | 13.71 | 9.56 | 102,830 |   |  
            | 7/18/2014 | +0.20 / +1.46% | 13.60 | 14.20 | 13.50 | 13.90 | 13.91 | 9.70 | 161,980 |   |  			
            | 7/17/2014 | +0.10 / +0.74% | 13.60 | 13.70 | 13.50 | 13.70 | 13.54 | 9.56 | 42,500 |   |  
            | 7/16/2014 | +0.10 / +0.74% | 13.60 | 13.80 | 13.50 | 13.60 | 13.63 | 9.49 | 193,370 |   |  			
            | 7/15/2014 | -0.10 / -0.74% | 13.60 | 13.60 | 13.40 | 13.50 | 13.51 | 9.42 | 73,690 |   |  
            | 7/14/2014 | +0.20 / +1.49% | 13.30 | 13.60 | 13.10 | 13.60 | 13.24 | 9.49 | 66,200 |   |  			
            | 7/11/2014 | 0.00 / 0.00% | 13.10 | 13.40 | 13.10 | 13.40 | 13.19 | 9.35 | 95,300 |   |  
            | 7/10/2014 | -0.10 / -0.74% | 13.40 | 13.50 | 13.20 | 13.40 | 13.32 | 9.35 | 162,700 |   |  			
            | 7/9/2014 | -0.10 / -0.74% | 13.50 | 13.60 | 13.50 | 13.50 | 13.50 | 9.42 | 60,800 |   |  
            | 7/8/2014 | 0.00 / 0.00% | 13.50 | 13.60 | 13.40 | 13.60 | 13.46 | 9.49 | 82,400 |   |  			
            | 7/7/2014 | -0.20 / -1.45% | 13.80 | 13.80 | 13.60 | 13.60 | 13.63 | 9.49 | 127,282 |   |  
            | 7/4/2014 | +0.30 / +2.22% | 13.50 | 13.80 | 13.40 | 13.80 | 13.57 | 9.63 | 223,908 |   |  			
            | 7/3/2014 | +0.50 / +3.85% | 13.10 | 13.60 | 13.10 | 13.50 | 13.42 | 9.42 | 367,682 |   |  
            | 7/2/2014 | +0.10 / +0.78% | 12.90 | 13.00 | 12.80 | 13.00 | 12.92 | 9.08 | 116,500 |   |  			
            | 7/1/2014 | +0.20 / +1.57% | 12.70 | 13.00 | 12.70 | 12.90 | 12.86 | 9.01 | 156,789 |   |  
            | 6/30/2014 | 0.00 / 0.00% | 12.80 | 12.80 | 12.70 | 12.70 | 12.75 | 8.87 | 82,580 |   |  			
            | 6/27/2014 | -0.10 / -0.78% | 12.70 | 12.80 | 12.70 | 12.70 | 12.72 | 8.87 | 37,000 |   |  
            | 6/26/2014 | +0.10 / +0.79% | 12.30 | 12.80 | 12.30 | 12.80 | 12.72 | 8.94 | 108,326 |   |  			
            | 6/25/2014 | +0.10 / +0.79% | 12.60 | 12.80 | 12.60 | 12.70 | 12.66 | 8.87 | 62,917 |   |  
            | 6/24/2014 | +0.10 / +0.80% | 12.60 | 12.60 | 12.40 | 12.60 | 12.48 | 8.80 | 32,910 |   |  			
            | 6/23/2014 | -0.10 / -0.79% | 12.50 | 12.60 | 12.40 | 12.50 | 12.52 | 8.73 | 57,180 |   |  
            | 6/20/2014 | 0.00 / 0.00% | 12.80 | 12.80 | 12.60 | 12.60 | 12.65 | 8.80 | 44,610 |   |  			
            | 6/19/2014 | -0.50 / -3.82% | 12.00 | 12.70 | 12.00 | 12.60 | 12.52 | 8.80 | 161,900 |   |  
            | 6/18/2014 | +0.10 / +0.77% | 13.00 | 13.20 | 12.90 | 13.10 | 13.01 | 9.15 | 130,900 |   |  			
            | 6/17/2014 | +0.20 / +1.56% | 12.70 | 13.00 | 12.70 | 13.00 | 12.85 | 9.08 | 128,880 |   |  
            | 6/16/2014 | +0.10 / +0.79% | 12.80 | 12.90 | 12.70 | 12.80 | 12.76 | 8.94 | 91,100 |   |  			
            | 6/13/2014 | +0.30 / +2.42% | 12.40 | 12.80 | 12.40 | 12.70 | 12.65 | 8.87 | 273,630 |   |  
            | 6/12/2014 | 0.00 / 0.00% | 12.50 | 12.50 | 12.30 | 12.40 | 12.34 | 8.66 | 41,700 |   |  |