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                    Closing price on 4/2/2013
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        |           
                
                    | Open | 21.50 |  
                    | High | 21.70 |  
                    | Low | 21.30 |  
                    | Volume | 170,610 |  
                    | Split-adjusted Price | 8.83 |  
                
             | 
 |  DQC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/2/2013 | +0.10 / +0.47% | 21.50 | 21.70 | 21.30 | 21.30 | 21.30 | 8.83 | 170,610 |   |  
            | 4/1/2013 | +0.50 / +2.42% | 20.50 | 21.20 | 20.40 | 21.20 | 21.20 | 8.79 | 36,890 |   |  			
            | 3/29/2013 | -0.30 / -1.43% | 20.30 | 20.80 | 20.30 | 20.70 | 20.70 | 8.58 | 55,990 |   |  
            | 3/28/2013 | -0.60 / -2.78% | 21.30 | 21.30 | 20.90 | 21.00 | 21.00 | 8.71 | 25,550 |   |  			
            | 3/27/2013 | +0.50 / +2.37% | 20.90 | 21.60 | 20.80 | 21.60 | 21.60 | 8.96 | 108,690 |   |  
            | 3/26/2013 | +0.20 / +0.96% | 21.00 | 21.50 | 20.80 | 21.10 | 21.10 | 8.75 | 137,960 |   |  			
            | 3/25/2013 | +0.30 / +1.46% | 21.40 | 21.40 | 20.10 | 20.90 | 20.90 | 8.67 | 51,600 |   |  
            | 3/22/2013 | -0.60 / -2.83% | 21.20 | 21.70 | 20.50 | 20.60 | 20.60 | 8.54 | 121,190 |   |  			
            | 3/21/2013 | +0.10 / +0.47% | 21.60 | 21.60 | 21.10 | 21.20 | 21.20 | 8.79 | 72,110 |   |  
            | 3/20/2013 | 0.00 / 0.00% | 21.60 | 21.80 | 21.00 | 21.10 | 21.10 | 8.75 | 72,270 |   |  			
            | 3/19/2013 | -0.60 / -2.76% | 21.90 | 21.90 | 21.10 | 21.10 | 21.10 | 8.75 | 81,070 |   |  
            | 3/18/2013 | +0.70 / +3.33% | 21.20 | 22.40 | 20.80 | 21.70 | 21.70 | 9.00 | 383,540 |   |  			
            | 3/15/2013 | +0.80 / +3.96% | 20.20 | 21.20 | 20.20 | 21.00 | 21.00 | 8.71 | 105,250 |   |  
            | 3/14/2013 | 0.00 / 0.00% | 20.20 | 20.30 | 19.90 | 20.20 | 20.20 | 8.38 | 100,860 |   |  			
            | 3/13/2013 | -0.30 / -1.46% | 20.20 | 20.50 | 20.20 | 20.20 | 20.20 | 8.38 | 40,730 |   |  
            | 3/12/2013 | -0.20 / -0.97% | 20.70 | 20.70 | 20.10 | 20.50 | 20.50 | 8.50 | 109,230 |   |  			
            | 3/11/2013 | +0.80 / +4.02% | 20.40 | 20.70 | 20.00 | 20.70 | 20.70 | 8.58 | 115,310 |   |  
            | 3/8/2013 | +0.30 / +1.53% | 19.90 | 20.10 | 19.80 | 19.90 | 19.90 | 8.25 | 38,500 |   |  			
            | 3/7/2013 | -0.20 / -1.01% | 19.80 | 19.80 | 19.40 | 19.60 | 19.60 | 8.13 | 45,130 |   |  
            | 3/6/2013 | +0.80 / +4.21% | 19.00 | 19.90 | 19.00 | 19.80 | 19.80 | 8.21 | 74,280 |   |  			
            | 3/5/2013 | -1.20 / -5.94% | 20.00 | 20.00 | 19.00 | 19.00 | 19.00 | 7.88 | 163,090 |   |  
            | 3/4/2013 | -1.00 / -4.72% | 21.30 | 21.30 | 20.20 | 20.20 | 20.20 | 8.38 | 162,950 |   |  			
            | 3/1/2013 | +0.90 / +4.43% | 20.30 | 21.60 | 20.30 | 21.20 | 21.20 | 8.79 | 226,820 |   |  
            | 2/28/2013 | +0.10 / +0.50% | 20.50 | 20.70 | 20.10 | 20.30 | 20.30 | 8.42 | 60,130 |   |  			
            | 2/27/2013 | +0.60 / +3.06% | 19.80 | 20.20 | 19.20 | 20.20 | 20.20 | 8.38 | 105,260 |   |  
            | 2/26/2013 | -0.40 / -2.00% | 20.00 | 20.50 | 19.60 | 19.60 | 19.60 | 8.13 | 202,260 |   |  			
            | 2/25/2013 | +0.30 / +1.52% | 19.70 | 20.20 | 19.50 | 20.00 | 20.00 | 8.29 | 161,660 |   |  
            | 2/22/2013 | -0.80 / -3.90% | 21.70 | 21.70 | 19.10 | 19.70 | 19.70 | 8.17 | 94,900 |   |  			
            | 2/21/2013 | -1.50 / -6.82% | 22.30 | 22.30 | 20.50 | 20.50 | 20.50 | 8.50 | 231,050 |   |  
            | 2/20/2013 | -0.50 / -2.22% | 21.40 | 22.50 | 21.40 | 22.00 | 22.00 | 9.12 | 220,450 |   |  |