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                    Closing price on 7/17/2012
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                    | Open | 19.40 |  
                    | High | 19.60 |  
                    | Low | 19.00 |  
                    | Volume | 83,310 |  
                    | Split-adjusted Price | 7.69 |  
                
             | 
 |  DQC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 7/5/2012 | +0.20 / +1.09% | 18.00 | 18.50 | 17.80 | 18.50 | 18.50 | 7.30 | 73,350 |   |  
            | 7/4/2012 | 0.00 / 0.00% | 18.00 | 18.90 | 17.90 | 18.30 | 18.30 | 7.22 | 58,660 |   |  			
            | 7/3/2012 | -0.40 / -2.14% | 18.20 | 18.50 | 17.80 | 18.30 | 18.30 | 7.22 | 153,610 |   |  
            | 7/2/2012 | -0.60 / -3.11% | 19.50 | 19.50 | 18.70 | 18.70 | 18.70 | 7.38 | 88,280 |   |  			
            | 6/29/2012 | -0.20 / -1.03% | 19.30 | 19.80 | 19.30 | 19.30 | 19.30 | 7.62 | 78,350 |   |  
            | 6/28/2012 | 0.00 / 0.00% | 19.50 | 20.00 | 19.00 | 19.50 | 19.50 | 7.69 | 41,620 |   |  			
            | 6/27/2012 | 0.00 / 0.00% | 19.20 | 20.00 | 19.20 | 19.50 | 19.50 | 7.69 | 67,580 |   |  
            | 6/26/2012 | -1.00 / -4.88% | 20.10 | 20.10 | 19.50 | 19.50 | 19.50 | 7.69 | 265,860 |   |  			
            | 6/25/2012 | -1.00 / -4.65% | 21.00 | 21.30 | 20.50 | 20.50 | 20.50 | 8.09 | 278,810 |   |  
            | 6/22/2012 | -0.10 / -0.46% | 21.60 | 21.60 | 21.00 | 21.50 | 21.50 | 8.48 | 69,180 |   |  			
            | 6/21/2012 | -0.10 / -0.46% | 22.00 | 22.00 | 21.30 | 21.60 | 21.60 | 8.52 | 64,680 |   |  
            | 6/20/2012 | +0.10 / +0.46% | 22.20 | 22.20 | 21.50 | 21.70 | 21.70 | 8.56 | 72,720 |   |  			
            | 6/19/2012 | -1.10 / -4.85% | 22.80 | 22.80 | 21.60 | 21.60 | 21.60 | 8.52 | 190,720 |   |  
            | 6/18/2012 | -0.10 / -0.44% | 22.80 | 23.40 | 22.00 | 22.70 | 22.70 | 8.96 | 104,120 |   |  			
            | 6/15/2012 | +1.00 / +4.59% | 21.40 | 22.80 | 21.40 | 22.80 | 22.80 | 9.00 | 99,570 |   |  
            | 6/14/2012 | -1.10 / -4.80% | 22.50 | 22.60 | 21.80 | 21.80 | 21.80 | 8.60 | 184,510 |   |  			
            | 6/13/2012 | +0.90 / +4.09% | 21.70 | 22.90 | 21.50 | 22.90 | 22.90 | 9.04 | 142,370 |   |  
            | 6/12/2012 | -1.00 / -4.35% | 22.60 | 23.10 | 22.00 | 22.00 | 22.00 | 8.68 | 161,150 |   |  			
            | 6/11/2012 | 0.00 / 0.00% | 23.00 | 23.40 | 22.50 | 23.00 | 23.00 | 9.08 | 135,590 |   |  
            | 6/8/2012 | -0.50 / -2.13% | 24.00 | 24.10 | 23.00 | 23.00 | 23.00 | 9.08 | 257,120 |   |  			
            | 6/7/2012 | +0.50 / +2.17% | 23.40 | 24.10 | 23.00 | 23.50 | 23.50 | 9.27 | 345,210 |   |  
            | 6/6/2012 | +0.40 / +1.77% | 22.20 | 23.20 | 21.60 | 23.00 | 23.00 | 9.08 | 110,200 |   |  |