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                    Closing price on 8/16/2012
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                    | Open | 19.70 |  
                    | High | 19.80 |  
                    | Low | 19.30 |  
                    | Volume | 87,810 |  
                    | Split-adjusted Price | 7.62 |  
                
             | 
 |  DQC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/16/2012 | -0.40 / -2.03% | 19.70 | 19.80 | 19.30 | 19.30 | 19.30 | 7.62 | 87,810 |   |  
            | 8/15/2012 | -0.10 / -0.51% | 19.70 | 19.90 | 19.50 | 19.70 | 19.70 | 7.77 | 42,270 |   |  			
            | 8/14/2012 | +0.10 / +0.51% | 19.70 | 20.20 | 19.70 | 19.80 | 19.80 | 7.81 | 152,830 |   |  
            | 8/13/2012 | -0.10 / -0.51% | 20.00 | 20.00 | 19.50 | 19.70 | 19.70 | 7.77 | 44,750 |   |  			
            | 8/10/2012 | 0.00 / 0.00% | 20.00 | 20.00 | 19.60 | 19.80 | 19.80 | 7.81 | 62,660 |   |  
            | 8/9/2012 | +0.30 / +1.54% | 19.70 | 20.10 | 19.70 | 19.80 | 19.80 | 7.81 | 81,100 |   |  			
            | 8/8/2012 | -0.20 / -1.02% | 19.70 | 19.80 | 19.40 | 19.50 | 19.50 | 7.69 | 46,790 |   |  
            | 8/7/2012 | 0.00 / 0.00% | 19.70 | 19.70 | 19.30 | 19.70 | 19.70 | 7.77 | 48,490 |   |  			
            | 8/6/2012 | +0.50 / +2.60% | 19.50 | 20.00 | 19.20 | 19.70 | 19.70 | 7.77 | 55,150 |   |  
            | 8/3/2012 | -0.10 / -0.52% | 19.20 | 19.30 | 19.10 | 19.20 | 19.20 | 7.58 | 29,750 |   |  			
            | 8/2/2012 | -0.20 / -1.03% | 19.50 | 19.60 | 19.30 | 19.30 | 19.30 | 7.62 | 19,920 |   |  
            | 8/1/2012 | -0.10 / -0.51% | 19.30 | 19.60 | 18.90 | 19.50 | 19.50 | 7.69 | 74,900 |   |  			
            | 7/31/2012 | 0.00 / 0.00% | 19.80 | 19.80 | 19.40 | 19.60 | 19.60 | 7.73 | 35,530 |   |  
            | 7/30/2012 | +0.10 / +0.51% | 19.60 | 19.60 | 19.20 | 19.60 | 19.60 | 7.73 | 72,310 |   |  			
            | 7/27/2012 | -0.20 / -1.02% | 19.90 | 19.90 | 19.20 | 19.50 | 19.50 | 7.69 | 88,810 |   |  
            | 7/26/2012 | +0.40 / +2.07% | 20.00 | 20.00 | 19.30 | 19.70 | 19.70 | 7.77 | 39,460 |   |  			
            | 7/25/2012 | -0.20 / -1.03% | 19.50 | 19.50 | 19.10 | 19.30 | 19.30 | 7.62 | 118,470 |   |  
            | 7/24/2012 | -0.80 / -3.94% | 19.90 | 20.30 | 19.30 | 19.50 | 19.50 | 7.69 | 134,590 |   |  			
            | 7/23/2012 | -0.70 / -3.33% | 21.00 | 21.00 | 20.20 | 20.30 | 20.30 | 8.01 | 85,490 |   |  
            | 7/20/2012 | +0.60 / +2.94% | 20.80 | 21.40 | 20.50 | 21.00 | 21.00 | 8.29 | 415,440 |   |  			
            | 7/19/2012 | +0.90 / +4.62% | 19.00 | 20.40 | 19.00 | 20.40 | 20.40 | 8.05 | 213,940 |   |  
            | 7/18/2012 | 0.00 / 0.00% | 19.50 | 19.70 | 18.80 | 19.50 | 19.50 | 7.69 | 49,260 |   |  			
            | 7/17/2012 | +0.60 / +3.17% | 19.40 | 19.60 | 19.00 | 19.50 | 19.50 | 7.69 | 83,310 |   |  
            | 7/16/2012 | -0.90 / -4.55% | 19.70 | 19.90 | 18.90 | 18.90 | 18.90 | 7.46 | 106,230 |   |  			
            | 7/13/2012 | +0.80 / +4.21% | 19.00 | 19.90 | 19.00 | 19.80 | 19.80 | 7.81 | 168,930 |   |  
            | 7/12/2012 | +0.30 / +1.60% | 18.70 | 19.00 | 18.60 | 19.00 | 19.00 | 7.50 | 97,690 |   |  			
            | 7/11/2012 | +0.40 / +2.19% | 18.30 | 18.90 | 18.30 | 18.70 | 18.70 | 7.38 | 54,970 |   |  
            | 7/10/2012 | 0.00 / 0.00% | 18.30 | 18.60 | 18.00 | 18.30 | 18.30 | 7.22 | 36,750 |   |  			
            | 7/9/2012 | -0.90 / -4.69% | 18.60 | 18.60 | 18.30 | 18.30 | 18.30 | 7.22 | 145,440 |   |  
            | 7/6/2012 | +0.70 / +3.78% | 18.30 | 19.40 | 18.30 | 19.20 | 19.20 | 7.58 | 169,990 |   |  |