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                    Closing price on 4/21/2010
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                    | Open | 28.00 |  
                    | High | 31.10 |  
                    | Low | 26.50 |  
                    | Volume | 78,200 |  
                    | Split-adjusted Price | 6.27 |  
                
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 |  DC4 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/21/2010 | +0.10 / +0.38% | 28.00 | 31.10 | 26.50 | 26.50 | 26.50 | 6.27 | 78,200 |   |  
            | 4/20/2010 | +1.70 / +6.88% | 26.40 | 29.30 | 26.40 | 26.40 | 27.13 | 6.24 | 73,700 |   |  			
            | 4/19/2010 | -8.60 / -25.83% | 24.70 | 27.40 | 24.70 | 24.70 | 24.70 | 5.84 | 300 |   |  
            | 4/16/2010 | -0.80 / -2.35% | 34.00 | 37.80 | 33.30 | 33.30 | 33.33 | 5.46 | 62,600 |   |  			
            | 4/15/2010 | +0.90 / +2.71% | 33.60 | 38.80 | 33.60 | 34.10 | 33.73 | 5.59 | 92,500 |   |  
            | 4/14/2010 | -0.10 / -0.30% | 34.00 | 39.00 | 33.20 | 33.20 | 33.53 | 5.45 | 42,100 |   |  			
            | 4/13/2010 | -2.60 / -7.24% | 36.10 | 40.10 | 33.30 | 33.30 | 33.63 | 5.46 | 82,200 |   |  
            | 4/12/2010 | +2.50 / +7.49% | 36.20 | 40.20 | 35.90 | 35.90 | 37.05 | 5.89 | 98,500 |   |  			
            | 4/9/2010 | -1.20 / -3.47% | 34.00 | 37.80 | 33.40 | 33.40 | 33.87 | 5.48 | 14,600 |   |  
            | 4/8/2010 | +1.80 / +5.49% | 33.00 | 38.60 | 33.00 | 34.60 | 34.37 | 5.68 | 119,900 |   |  			
            | 4/7/2010 | +0.30 / +0.92% | 33.00 | 36.70 | 32.80 | 32.80 | 33.83 | 5.38 | 22,500 |   |  
            | 4/6/2010 | -0.20 / -0.61% | 33.00 | 37.80 | 32.50 | 32.50 | 32.98 | 5.33 | 40,800 |   |  			
            | 4/5/2010 | +0.70 / +2.19% | 32.80 | 36.40 | 32.70 | 32.70 | 33.65 | 5.36 | 6,000 |   |  
            | 4/2/2010 | 0.00 / 0.00% | 32.30 | 35.90 | 32.00 | 32.00 | 32.12 | 5.25 | 14,300 |   |  			
            | 4/1/2010 | +1.20 / +3.90% | 32.40 | 36.00 | 32.00 | 32.00 | 32.02 | 5.25 | 17,600 |   |  
            | 3/31/2010 | -1.80 / -5.52% | 32.90 | 36.60 | 30.80 | 30.80 | 31.70 | 5.05 | 29,100 |   |  			
            | 3/30/2010 | +0.10 / +0.31% | 33.00 | 36.70 | 32.60 | 32.60 | 32.68 | 5.35 | 36,300 |   |  
            | 3/29/2010 | +0.10 / +0.31% | 32.30 | 36.10 | 32.30 | 32.50 | 32.32 | 5.33 | 5,900 |   |  			
            | 3/26/2010 | -0.10 / -0.31% | 32.00 | 36.60 | 32.00 | 32.40 | 32.29 | 5.31 | 32,500 |   |  
            | 3/25/2010 | -1.40 / -4.13% | 35.90 | 39.90 | 32.50 | 32.50 | 32.90 | 5.33 | 35,100 |   |  			
            | 3/24/2010 | +1.40 / +4.31% | 32.50 | 37.70 | 32.50 | 33.90 | 33.81 | 5.56 | 20,800 |   |  
            | 3/23/2010 | +1.00 / +3.17% | 31.60 | 36.10 | 31.60 | 32.50 | 31.66 | 5.33 | 49,900 |   |  			
            | 3/22/2010 | -0.50 / -1.56% | 30.00 | 35.80 | 30.00 | 31.50 | 31.78 | 5.17 | 11,600 |   |  
            | 3/19/2010 | +0.10 / +0.31% | 32.00 | 35.60 | 32.00 | 32.00 | 32.90 | 5.25 | 19,600 |   |  			
            | 3/18/2010 | +0.90 / +2.90% | 31.00 | 36.10 | 31.00 | 31.90 | 31.44 | 5.23 | 39,600 |   |  
            | 3/17/2010 | -1.00 / -3.13% | 32.90 | 36.70 | 31.00 | 31.00 | 31.41 | 5.08 | 32,600 |   |  			
            | 3/16/2010 | -2.00 / -5.88% | 34.90 | 38.80 | 32.00 | 32.00 | 32.11 | 5.25 | 40,700 |   |  
            | 3/15/2010 | +0.10 / +0.29% | 35.00 | 39.10 | 34.00 | 34.00 | 34.10 | 5.58 | 32,400 |   |  			
            | 3/12/2010 | +0.30 / +0.89% | 33.50 | 37.80 | 33.50 | 33.90 | 33.60 | 5.56 | 26,200 |   |  
            | 3/11/2010 | +0.10 / +0.30% | 33.70 | 38.30 | 33.60 | 33.60 | 33.97 | 5.51 | 27,200 |   |  |  |  
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