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                    Closing price on 5/7/2013
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                    | Open | 3.70 |  
                    | High | 4.50 |  
                    | Low | 3.70 |  
                    | Volume | 1,300 |  
                    | Split-adjusted Price | 2.46 |  
                
             | 
 |  DST Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/7/2013 | +0.40 / +9.76% | 3.70 | 4.50 | 3.70 | 4.50 | 4.50 | 2.46 | 1,300 |   |  
            | 5/6/2013 | -0.40 / -8.89% | 3.70 | 4.10 | 3.70 | 4.10 | 4.10 | 2.24 | 1,800 |   |  			
            | 5/3/2013 | +0.40 / +9.76% | 4.50 | 4.50 | 3.70 | 4.50 | 4.50 | 2.46 | 2,300 |   |  
            | 5/2/2013 | -0.40 / -8.89% | 4.10 | 4.10 | 4.10 | 4.10 | 4.10 | 2.24 | 100 |   |  			
            | 4/26/2013 | -0.50 / -10.00% | 4.50 | 4.50 | 4.50 | 4.50 | 4.50 | 2.46 | 3,000 |   |  
            | 4/25/2013 | 0.00 / 0.00% | 4.50 | 5.00 | 4.50 | 5.00 | 5.00 | 2.73 | 600 |   |  			
            | 4/24/2013 | +0.30 / +6.38% | 4.30 | 5.00 | 4.30 | 5.00 | 5.00 | 2.73 | 5,200 |   |  
            | 4/23/2013 | +0.30 / +6.82% | 4.10 | 4.80 | 4.00 | 4.70 | 4.70 | 2.57 | 7,600 |   |  			
            | 4/22/2013 | +0.40 / +10.00% | 3.90 | 4.40 | 3.70 | 4.40 | 4.40 | 2.40 | 2,800 |   |  
            | 4/18/2013 | +0.30 / +8.11% | 3.70 | 4.00 | 3.50 | 4.00 | 4.00 | 2.18 | 6,700 |   |  			
            | 4/17/2013 | 0.00 / 0.00% | 3.40 | 3.70 | 3.40 | 3.70 | 3.70 | 2.02 | 400 |   |  
            | 4/16/2013 | 0.00 / 0.00% | 3.70 | 4.00 | 3.50 | 3.70 | 3.70 | 2.02 | 3,300 |   |  			
            | 4/15/2013 | +0.10 / +2.78% | 3.40 | 3.70 | 3.30 | 3.70 | 3.70 | 2.02 | 1,400 |   |  
            | 4/12/2013 | 0.00 / 0.00% | 3.70 | 3.70 | 3.30 | 3.60 | 3.60 | 1.96 | 3,700 |   |  			
            | 4/11/2013 | +0.10 / +2.86% | 3.60 | 3.60 | 3.60 | 3.60 | 3.60 | 1.96 | 300 |   |  
            | 4/10/2013 | 0.00 / 0.00% | 3.40 | 3.50 | 3.40 | 3.50 | 3.50 | 1.91 | 1,300 |   |  			
            | 4/9/2013 | -0.30 / -7.89% | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 | 1.91 | 300 |   |  
            | 4/8/2013 | -0.20 / -5.00% | 3.60 | 3.80 | 3.60 | 3.80 | 3.80 | 2.07 | 300 |   |  			
            | 4/5/2013 | +0.20 / +5.26% | 3.50 | 4.00 | 3.40 | 4.00 | 4.00 | 2.18 | 1,100 |   |  
            | 4/4/2013 | +0.20 / +5.56% | 3.40 | 3.80 | 3.30 | 3.80 | 3.80 | 2.07 | 900 |   |  			
            | 4/3/2013 | -0.30 / -7.69% | 3.60 | 4.20 | 3.60 | 3.60 | 3.60 | 1.96 | 400 |   |  
            | 4/2/2013 | -0.40 / -9.30% | 3.90 | 3.90 | 3.90 | 3.90 | 3.90 | 2.13 | 12,100 |   |  			
            | 4/1/2013 | +0.30 / +7.50% | 3.60 | 4.30 | 3.60 | 4.30 | 4.30 | 2.35 | 9,400 |   |  
            | 3/29/2013 | +0.10 / +2.56% | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 | 2.18 | 100 |   |  			
            | 3/28/2013 | +0.30 / +8.33% | 3.80 | 3.90 | 3.80 | 3.90 | 3.90 | 2.13 | 51,200 |   |  
            | 3/27/2013 | +0.30 / +9.09% | 3.30 | 3.60 | 3.30 | 3.60 | 3.60 | 1.96 | 1,100 |   |  			
            | 3/26/2013 | +0.30 / +10.00% | 3.00 | 3.30 | 3.00 | 3.30 | 3.30 | 1.80 | 600 |   |  
            | 3/25/2013 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 1.64 | 0 |   |  			
            | 3/22/2013 | +0.10 / +3.45% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 1.64 | 100 |   |  
            | 3/21/2013 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 1.58 | 0 |   |  |