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                    Closing price on 4/24/2012
                 |  |  
    
        |           
                
                    | Open | 37.90 |  
                    | High | 38.00 |  
                    | Low | 36.30 |  
                    | Volume | 6,170 |  
                    | Split-adjusted Price | 15.17 |  
                
             | 
 |  CTD Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/24/2012 | +0.50 / +1.33% | 37.90 | 38.00 | 36.30 | 38.00 | 38.00 | 15.17 | 6,170 |   |  
            | 4/23/2012 | -0.80 / -2.09% | 38.00 | 38.30 | 37.50 | 37.50 | 37.50 | 14.97 | 7,090 |   |  			
            | 4/20/2012 | 0.00 / 0.00% | 38.00 | 38.30 | 38.00 | 38.30 | 38.30 | 15.29 | 3,620 |   |  
            | 4/19/2012 | -1.70 / -4.25% | 36.50 | 38.50 | 36.50 | 38.30 | 38.30 | 15.29 | 12,410 |   |  			
            | 4/18/2012 | -2.00 / -4.76% | 42.00 | 42.00 | 39.90 | 40.00 | 40.00 | 15.17 | 3,900 |   |  
            | 4/17/2012 | 0.00 / 0.00% | 42.00 | 43.00 | 40.00 | 42.00 | 42.00 | 15.93 | 116,340 |   |  			
            | 4/16/2012 | 0.00 / 0.00% | 42.00 | 42.00 | 41.50 | 42.00 | 42.00 | 15.93 | 258,150 |   |  
            | 4/13/2012 | +1.80 / +4.48% | 40.20 | 42.00 | 40.20 | 42.00 | 42.00 | 15.93 | 21,530 |   |  			
            | 4/12/2012 | +1.60 / +4.15% | 39.70 | 40.50 | 38.60 | 40.20 | 40.20 | 15.25 | 72,930 |   |  
            | 4/11/2012 | +0.40 / +1.05% | 39.70 | 39.70 | 38.60 | 38.60 | 38.60 | 14.64 | 7,570 |   |  			
            | 4/10/2012 | -0.30 / -0.78% | 38.00 | 38.50 | 38.00 | 38.20 | 38.20 | 14.49 | 312,180 |   |  
            | 4/9/2012 | +0.90 / +2.39% | 38.40 | 38.50 | 37.70 | 38.50 | 38.50 | 14.60 | 21,220 |   |  			
            | 4/6/2012 | -0.30 / -0.79% | 39.00 | 39.00 | 37.60 | 37.60 | 37.60 | 14.26 | 14,310 |   |  
            | 4/5/2012 | +0.40 / +1.07% | 37.60 | 37.90 | 37.60 | 37.90 | 37.90 | 14.37 | 11,000 |   |  			
            | 4/4/2012 | -0.40 / -1.06% | 37.60 | 37.60 | 37.50 | 37.50 | 37.50 | 14.22 | 3,840 |   |  
            | 4/3/2012 | +0.10 / +0.26% | 37.80 | 38.00 | 37.70 | 37.90 | 37.90 | 14.37 | 11,910 |   |  			
            | 3/30/2012 | +0.20 / +0.53% | 37.60 | 38.00 | 37.50 | 37.80 | 37.80 | 14.34 | 29,450 |   |  
            | 3/29/2012 | +0.10 / +0.27% | 37.50 | 38.50 | 37.50 | 37.60 | 37.60 | 14.26 | 19,470 |   |  			
            | 3/28/2012 | -1.00 / -2.60% | 38.40 | 39.30 | 37.50 | 37.50 | 37.50 | 14.22 | 572,890 |   |  
            | 3/27/2012 | +0.10 / +0.26% | 38.50 | 38.50 | 38.00 | 38.50 | 38.50 | 14.60 | 22,750 |   |  			
            | 3/26/2012 | +0.40 / +1.05% | 37.50 | 38.50 | 37.50 | 38.40 | 38.40 | 14.56 | 73,990 |   |  
            | 3/23/2012 | +0.60 / +1.60% | 38.50 | 38.50 | 36.90 | 38.00 | 38.00 | 14.41 | 21,290 |   |  			
            | 3/22/2012 | +0.80 / +2.19% | 35.00 | 37.40 | 35.00 | 37.40 | 37.40 | 14.19 | 40,710 |   |  
            | 3/21/2012 | -1.90 / -4.94% | 39.00 | 39.00 | 36.60 | 36.60 | 36.60 | 13.88 | 22,400 |   |  			
            | 3/20/2012 | +0.70 / +1.85% | 39.40 | 39.40 | 38.00 | 38.50 | 38.50 | 14.60 | 42,110 |   |  
            | 3/19/2012 | +1.80 / +5.00% | 37.80 | 37.80 | 36.00 | 37.80 | 37.80 | 14.34 | 64,860 |   |  			
            | 3/16/2012 | +1.70 / +4.96% | 36.00 | 36.00 | 36.00 | 36.00 | 36.00 | 13.65 | 14,150 |   |  
            | 3/15/2012 | +1.60 / +4.89% | 34.30 | 34.30 | 34.30 | 34.30 | 34.30 | 13.01 | 10,840 |   |  			
            | 3/14/2012 | +1.50 / +4.81% | 32.50 | 32.70 | 32.40 | 32.70 | 32.70 | 12.40 | 37,300 |   |  
            | 3/13/2012 | -0.20 / -0.64% | 31.40 | 31.40 | 31.20 | 31.20 | 31.20 | 11.83 | 9,390 |   |  |