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                    Closing price on 7/19/2013
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                    | Open | 10.30 |  
                    | High | 10.40 |  
                    | Low | 10.20 |  
                    | Volume | 122,000 |  
                    | Split-adjusted Price | 5.51 |  
                
             | 
 |  SD6 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/19/2013 | 0.00 / 0.00% | 10.30 | 10.40 | 10.20 | 10.30 | 10.30 | 5.51 | 122,000 |   |  
            | 7/18/2013 | -0.10 / -0.96% | 10.40 | 10.40 | 10.30 | 10.30 | 10.33 | 5.51 | 80,301 |   |  			
            | 7/17/2013 | 0.00 / 0.00% | 10.30 | 10.40 | 10.30 | 10.40 | 10.36 | 5.57 | 103,500 |   |  
            | 7/16/2013 | +0.10 / +0.97% | 10.20 | 10.40 | 10.20 | 10.40 | 10.33 | 5.57 | 83,400 |   |  			
            | 7/15/2013 | 0.00 / 0.00% | 10.40 | 10.40 | 10.10 | 10.30 | 10.25 | 5.51 | 64,100 |   |  
            | 7/12/2013 | +0.10 / +0.98% | 10.20 | 10.40 | 10.10 | 10.30 | 10.25 | 5.51 | 78,000 |   |  			
            | 7/11/2013 | 0.00 / 0.00% | 10.20 | 10.20 | 10.00 | 10.20 | 10.10 | 5.46 | 101,600 |   |  
            | 7/10/2013 | -0.10 / -0.97% | 10.10 | 10.30 | 10.10 | 10.20 | 10.22 | 5.46 | 143,730 |   |  			
            | 7/9/2013 | +0.10 / +0.98% | 10.20 | 10.30 | 10.10 | 10.30 | 10.20 | 5.51 | 97,000 |   |  
            | 7/8/2013 | -0.10 / -0.97% | 10.20 | 10.30 | 10.10 | 10.20 | 10.16 | 5.46 | 73,300 |   |  			
            | 7/5/2013 | -0.30 / -2.83% | 10.90 | 11.00 | 10.30 | 10.30 | 10.49 | 5.51 | 169,400 |   |  
            | 7/4/2013 | +0.90 / +9.28% | 9.90 | 10.60 | 9.90 | 10.60 | 10.53 | 5.67 | 373,000 |   |  			
            | 7/3/2013 | 0.00 / 0.00% | 9.70 | 9.70 | 9.50 | 9.70 | 9.59 | 5.19 | 164,450 |   |  
            | 7/2/2013 | +0.10 / +1.04% | 9.60 | 9.80 | 9.60 | 9.70 | 9.65 | 5.19 | 91,400 |   |  			
            | 7/1/2013 | -0.10 / -1.03% | 9.60 | 9.70 | 9.40 | 9.60 | 9.57 | 5.14 | 83,950 |   |  
            | 6/28/2013 | -0.20 / -2.02% | 9.90 | 10.10 | 9.60 | 9.70 | 9.89 | 5.19 | 101,700 |   |  			
            | 6/27/2013 | +0.30 / +3.13% | 9.70 | 9.90 | 9.70 | 9.90 | 9.78 | 5.30 | 43,500 |   |  
            | 6/26/2013 | -0.10 / -1.03% | 9.80 | 9.80 | 9.30 | 9.60 | 9.52 | 5.14 | 144,800 |   |  			
            | 6/25/2013 | -0.50 / -4.90% | 10.10 | 10.10 | 9.30 | 9.70 | 9.65 | 5.19 | 367,900 |   |  
            | 6/24/2013 | -0.10 / -0.97% | 10.50 | 10.50 | 10.00 | 10.20 | 10.21 | 5.46 | 296,000 |   |  			
            | 6/21/2013 | +0.20 / +1.98% | 10.00 | 10.50 | 10.00 | 10.30 | 10.33 | 5.51 | 429,000 |   |  
            | 6/20/2013 | +0.30 / +3.06% | 9.70 | 10.30 | 9.70 | 10.10 | 10.05 | 5.41 | 341,600 |   |  			
            | 6/19/2013 | -0.50 / -4.85% | 10.20 | 10.20 | 9.80 | 9.80 | 9.95 | 5.24 | 201,300 |   |  
            | 6/18/2013 | +0.10 / +0.98% | 10.20 | 10.30 | 9.70 | 10.30 | 9.87 | 5.51 | 133,540 |   |  			
            | 6/17/2013 | 0.00 / 0.00% | 10.50 | 11.00 | 10.10 | 10.20 | 10.51 | 5.46 | 315,488 |   |  
            | 6/14/2013 | +0.90 / +9.68% | 9.40 | 10.20 | 9.40 | 10.20 | 10.10 | 5.46 | 894,800 |   |  			
            | 6/13/2013 | +0.20 / +2.20% | 9.30 | 9.40 | 9.20 | 9.30 | 9.31 | 4.98 | 165,000 |   |  
            | 6/12/2013 | -0.10 / -1.09% | 9.20 | 9.20 | 9.10 | 9.10 | 9.13 | 4.87 | 86,112 |   |  			
            | 6/11/2013 | -0.10 / -1.08% | 9.30 | 9.40 | 9.10 | 9.20 | 9.20 | 4.92 | 31,870 |   |  
            | 6/10/2013 | 0.00 / 0.00% | 9.30 | 9.40 | 9.20 | 9.30 | 9.29 | 4.98 | 61,450 |   |  |