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                    Closing price on 9/14/2012
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        |           
                
                    | Open | 23.40 |  
                    | High | 24.00 |  
                    | Low | 23.40 |  
                    | Volume | 2,610 |  
                    | Split-adjusted Price | 3.52 |  
                
             | 
 |  ACC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/14/2012 | +0.10 / +0.43% | 23.40 | 24.00 | 23.40 | 23.40 | 23.40 | 3.52 | 2,610 |   |  
            | 9/13/2012 | 0.00 / 0.00% | 23.50 | 23.50 | 23.20 | 23.30 | 23.30 | 3.50 | 5,030 |   |  			
            | 9/12/2012 | -0.20 / -0.85% | 23.90 | 23.90 | 23.20 | 23.30 | 23.30 | 3.50 | 3,040 |   |  
            | 9/11/2012 | -0.20 / -0.84% | 23.20 | 23.90 | 23.20 | 23.50 | 23.50 | 3.53 | 13,010 |   |  			
            | 9/10/2012 | 0.00 / 0.00% | 23.20 | 23.70 | 23.00 | 23.70 | 23.70 | 3.56 | 6,170 |   |  
            | 9/7/2012 | +0.50 / +2.16% | 24.10 | 24.10 | 23.30 | 23.70 | 23.70 | 3.56 | 3,710 |   |  			
            | 9/6/2012 | -0.80 / -3.33% | 23.40 | 23.90 | 23.20 | 23.20 | 23.20 | 3.49 | 520 |   |  
            | 9/5/2012 | +0.10 / +0.42% | 23.40 | 24.00 | 23.40 | 24.00 | 24.00 | 3.61 | 1,960 |   |  			
            | 9/4/2012 | 0.00 / 0.00% | 24.00 | 24.00 | 23.90 | 23.90 | 23.90 | 3.59 | 2,370 |   |  
            | 8/31/2012 | -0.10 / -0.42% | 23.90 | 23.90 | 23.90 | 23.90 | 23.90 | 3.59 | 20 |   |  			
            | 8/30/2012 | 0.00 / 0.00% | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 3.61 | 10,100 |   |  
            | 8/29/2012 | 0.00 / 0.00% | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 3.61 | 230 |   |  			
            | 8/28/2012 | 0.00 / 0.00% | 23.80 | 24.00 | 23.80 | 24.00 | 24.00 | 3.61 | 2,220 |   |  
            | 8/27/2012 | 0.00 / 0.00% | 24.00 | 24.00 | 22.80 | 24.00 | 24.00 | 3.61 | 26,010 |   |  			
            | 8/24/2012 | -0.50 / -2.04% | 23.50 | 24.40 | 23.50 | 24.00 | 24.00 | 3.61 | 12,270 |   |  
            | 8/23/2012 | -0.20 / -0.81% | 23.70 | 25.00 | 23.50 | 24.50 | 24.50 | 3.68 | 34,100 |   |  			
            | 8/22/2012 | +0.70 / +2.92% | 23.20 | 25.00 | 23.20 | 24.70 | 24.70 | 3.71 | 29,540 |   |  
            | 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 |   |  |