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                    Closing price on 6/8/2012
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        |           
                
                    | Open | 16.80 |  
                    | High | 17.00 |  
                    | Low | 16.80 |  
                    | Volume | 10,500 |  
                    | Split-adjusted Price | 1.94 |  
                
             | 
 |  DBT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/8/2012 | +0.30 / +1.82% | 16.80 | 17.00 | 16.80 | 16.80 | 16.81 | 1.94 | 10,500 |   |  
            | 6/7/2012 | 0.00 / 0.00% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 1.91 | 0 |   |  			
            | 6/6/2012 | 0.00 / 0.00% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 1.91 | 500 |   |  
            | 6/5/2012 | 0.00 / 0.00% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 1.91 | 1,000 |   |  			
            | 6/4/2012 | 0.00 / 0.00% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 1.91 | 2,300 |   |  
            | 6/1/2012 | +0.50 / +3.13% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 1.91 | 1,000 |   |  			
            | 5/31/2012 | 0.00 / 0.00% | 16.00 | 16.00 | 16.00 | 16.00 | 16.00 | 1.85 | 0 |   |  
            | 5/30/2012 | 0.00 / 0.00% | 16.00 | 16.00 | 16.00 | 16.00 | 16.00 | 1.85 | 0 |   |  			
            | 5/29/2012 | 0.00 / 0.00% | 16.00 | 16.00 | 16.00 | 16.00 | 16.00 | 1.85 | 0 |   |  
            | 5/28/2012 | 0.00 / 0.00% | 16.00 | 16.00 | 16.00 | 16.00 | 16.00 | 1.85 | 0 |   |  			
            | 5/25/2012 | -0.70 / -4.19% | 16.70 | 16.70 | 16.00 | 16.00 | 16.33 | 1.85 | 3,200 |   |  
            | 5/24/2012 | -0.30 / -1.76% | 16.70 | 16.70 | 16.70 | 16.70 | 16.70 | 1.93 | 100 |   |  			
            | 5/23/2012 | 0.00 / 0.00% | 17.00 | 17.00 | 17.00 | 17.00 | 17.00 | 1.97 | 6,300 |   |  
            | 5/22/2012 | +0.60 / +3.66% | 17.00 | 17.00 | 17.00 | 17.00 | 17.00 | 1.97 | 3,500 |   |  			
            | 5/21/2012 | 0.00 / 0.00% | 16.40 | 16.40 | 16.40 | 16.40 | 16.40 | 1.90 | 0 |   |  
            | 5/18/2012 | 0.00 / 0.00% | 16.40 | 16.40 | 16.40 | 16.40 | 16.40 | 1.90 | 0 |   |  			
            | 5/17/2012 | 0.00 / 0.00% | 16.40 | 16.40 | 16.40 | 16.40 | 16.40 | 1.90 | 0 |   |  
            | 5/16/2012 | -1.20 / -6.82% | 16.40 | 16.40 | 16.40 | 16.40 | 16.40 | 1.90 | 1,500 |   |  			
            | 5/15/2012 | 0.00 / 0.00% | 17.60 | 17.60 | 17.60 | 17.60 | 17.60 | 2.03 | 0 |   |  
            | 5/14/2012 | -1.30 / -6.88% | 17.60 | 17.60 | 17.60 | 17.60 | 17.60 | 2.03 | 1,500 |   |  			
            | 5/11/2012 | 0.00 / 0.00% | 18.90 | 18.90 | 18.90 | 18.90 | 18.90 | 2.18 | 0 |   |  
            | 5/10/2012 | 0.00 / 0.00% | 18.90 | 18.90 | 18.90 | 18.90 | 18.90 | 2.18 | 0 |   |  			
            | 5/9/2012 | -0.10 / -0.53% | 18.90 | 18.90 | 18.90 | 18.90 | 18.90 | 2.18 | 100 |   |  
            | 5/8/2012 | 0.00 / 0.00% | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 2.20 | 500 |   |  			
            | 5/7/2012 | +1.20 / +6.74% | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 2.20 | 100 |   |  
            | 5/4/2012 | +1.00 / +5.95% | 17.80 | 17.80 | 17.80 | 17.80 | 17.80 | 2.06 | 300 |   |  			
            | 5/3/2012 | 0.00 / 0.00% | 16.80 | 16.80 | 16.80 | 16.80 | 16.80 | 1.94 | 0 |   |  
            | 5/2/2012 | 0.00 / 0.00% | 16.80 | 16.80 | 16.80 | 16.80 | 16.80 | 1.94 | 0 |   |  			
            | 4/27/2012 | 0.00 / 0.00% | 16.80 | 16.80 | 16.80 | 16.80 | 16.80 | 1.94 | 0 |   |  
            | 4/26/2012 | +0.80 / +5.00% | 16.90 | 17.10 | 16.80 | 16.80 | 17.09 | 1.94 | 19,500 |   |  |