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                    Closing price on 8/21/2012
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                    | Open | 25.20 |  
                    | High | 25.30 |  
                    | Low | 24.00 |  
                    | Volume | 76,020 |  
                    | Split-adjusted Price | 3.61 |  
                
             | 
 |  ACC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/21/2012 | -1.20 / -4.76% | 25.20 | 25.30 | 24.00 | 24.00 | 24.00 | 3.61 | 76,020 |   |  
            | 8/20/2012 | +0.60 / +2.44% | 24.90 | 25.40 | 24.80 | 25.20 | 25.20 | 3.79 | 13,150 |   |  			
            | 8/17/2012 | -0.10 / -0.40% | 24.10 | 24.80 | 24.00 | 24.60 | 24.60 | 3.70 | 580 |   |  
            | 8/16/2012 | -0.10 / -0.40% | 24.10 | 24.70 | 23.60 | 24.70 | 24.70 | 3.71 | 6,010 |   |  			
            | 8/15/2012 | +0.70 / +2.90% | 25.20 | 25.20 | 24.10 | 24.80 | 24.80 | 3.73 | 1,310 |   |  
            | 8/14/2012 | -0.40 / -1.63% | 25.00 | 25.00 | 24.10 | 24.10 | 24.10 | 3.62 | 420 |   |  			
            | 8/13/2012 | 0.00 / 0.00% | 24.50 | 24.50 | 24.50 | 24.50 | 24.50 | 3.68 | 3,000 |   |  
            | 8/10/2012 | 0.00 / 0.00% | 25.00 | 25.00 | 24.00 | 24.50 | 24.50 | 3.68 | 18,180 |   |  			
            | 8/9/2012 | 0.00 / 0.00% | 25.20 | 25.20 | 24.50 | 24.50 | 24.50 | 3.68 | 1,710 |   |  
            | 8/8/2012 | 0.00 / 0.00% | 24.50 | 24.50 | 24.50 | 24.50 | 24.50 | 3.68 | 980 |   |  			
            | 8/7/2012 | +0.20 / +0.82% | 24.50 | 24.90 | 24.00 | 24.50 | 24.50 | 3.68 | 12,760 |   |  
            | 8/6/2012 | +1.10 / +4.74% | 24.10 | 24.30 | 23.50 | 24.30 | 24.30 | 3.65 | 20,210 |   |  			
            | 8/3/2012 | +0.40 / +1.75% | 23.00 | 23.20 | 23.00 | 23.20 | 23.20 | 3.49 | 5,620 |   |  
            | 8/2/2012 | -0.40 / -1.72% | 23.00 | 23.20 | 22.80 | 22.80 | 22.80 | 3.43 | 6,180 |   |  			
            | 8/1/2012 | +0.20 / +0.87% | 23.40 | 23.40 | 22.30 | 23.20 | 23.20 | 3.49 | 2,510 |   |  
            | 7/31/2012 | +0.50 / +2.22% | 22.50 | 23.00 | 22.40 | 23.00 | 23.00 | 3.46 | 10,830 |   |  			
            | 7/30/2012 | 0.00 / 0.00% | 23.00 | 23.00 | 22.20 | 22.50 | 22.50 | 3.38 | 13,730 |   |  
            | 7/27/2012 | 0.00 / 0.00% | 22.50 | 22.80 | 22.40 | 22.50 | 22.50 | 3.38 | 6,210 |   |  			
            | 7/26/2012 | -0.20 / -0.88% | 22.70 | 22.70 | 22.50 | 22.50 | 22.50 | 3.38 | 10,780 |   |  
            | 7/25/2012 | -0.10 / -0.44% | 22.80 | 22.80 | 22.50 | 22.70 | 22.70 | 3.41 | 3,610 |   |  			
            | 7/24/2012 | -0.20 / -0.87% | 23.00 | 23.00 | 22.80 | 22.80 | 22.80 | 3.43 | 4,150 |   |  
            | 7/23/2012 | 0.00 / 0.00% | 22.90 | 23.40 | 22.80 | 23.00 | 23.00 | 3.46 | 19,120 |   |  			
            | 7/20/2012 | +0.10 / +0.44% | 23.00 | 23.50 | 22.90 | 23.00 | 23.00 | 3.46 | 9,420 |   |  
            | 7/19/2012 | +0.20 / +0.88% | 22.70 | 22.90 | 22.40 | 22.90 | 22.90 | 3.44 | 9,470 |   |  			
            | 7/18/2012 | -0.20 / -0.87% | 22.30 | 22.80 | 22.30 | 22.70 | 22.70 | 3.41 | 4,420 |   |  
            | 7/17/2012 | +0.60 / +2.69% | 22.00 | 22.90 | 21.90 | 22.90 | 22.90 | 3.44 | 16,990 |   |  			
            | 7/16/2012 | -0.20 / -0.89% | 22.40 | 22.40 | 22.10 | 22.30 | 22.30 | 3.35 | 19,570 |   |  
            | 7/13/2012 | +0.10 / +0.45% | 22.50 | 22.60 | 22.50 | 22.50 | 22.50 | 3.38 | 6,930 |   |  			
            | 7/12/2012 | 0.00 / 0.00% | 22.50 | 22.50 | 21.90 | 22.40 | 22.40 | 3.37 | 2,670 |   |  
            | 7/11/2012 | +0.20 / +0.90% | 22.60 | 22.60 | 21.90 | 22.40 | 22.40 | 3.37 | 8,810 |   |  |