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                    Closing price on 3/19/2013
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        |           
                
                    | Open | 33.50 |  
                    | High | 33.80 |  
                    | Low | 33.10 |  
                    | Volume | 43,040 |  
                    | Split-adjusted Price | 5.07 |  
                
             | 
 |  ACC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/19/2013 | +0.70 / +2.12% | 33.50 | 33.80 | 33.10 | 33.70 | 33.70 | 5.07 | 43,040 |   |  
            | 3/18/2013 | +1.00 / +3.13% | 32.50 | 33.00 | 32.00 | 33.00 | 33.00 | 4.96 | 58,340 |   |  			
            | 3/15/2013 | +0.80 / +2.56% | 31.20 | 32.30 | 31.10 | 32.00 | 32.00 | 4.81 | 47,030 |   |  
            | 3/14/2013 | 0.00 / 0.00% | 31.50 | 31.50 | 31.00 | 31.20 | 31.20 | 4.69 | 37,610 |   |  			
            | 3/13/2013 | +0.70 / +2.30% | 30.70 | 31.30 | 30.60 | 31.20 | 31.20 | 4.69 | 45,720 |   |  
            | 3/12/2013 | +1.30 / +4.45% | 29.10 | 30.50 | 29.10 | 30.50 | 30.50 | 4.58 | 47,520 |   |  			
            | 3/11/2013 | +0.50 / +1.74% | 28.70 | 29.20 | 28.50 | 29.20 | 29.20 | 4.39 | 8,900 |   |  
            | 3/8/2013 | +0.70 / +2.50% | 28.70 | 28.70 | 28.10 | 28.70 | 28.70 | 4.31 | 2,570 |   |  			
            | 3/7/2013 | 0.00 / 0.00% | 27.80 | 28.00 | 27.80 | 28.00 | 28.00 | 4.21 | 4,600 |   |  
            | 3/6/2013 | +0.80 / +2.94% | 27.30 | 28.00 | 27.30 | 28.00 | 28.00 | 4.21 | 5,000 |   |  			
            | 3/5/2013 | 0.00 / 0.00% | 27.10 | 27.20 | 27.10 | 27.20 | 27.20 | 4.09 | 16,270 |   |  
            | 3/4/2013 | +0.10 / +0.37% | 27.20 | 27.50 | 27.10 | 27.20 | 27.20 | 4.09 | 97,410 |   |  			
            | 3/1/2013 | 0.00 / 0.00% | 27.10 | 27.10 | 27.00 | 27.10 | 27.10 | 4.07 | 2,600 |   |  
            | 2/28/2013 | 0.00 / 0.00% | 27.10 | 27.10 | 27.10 | 27.10 | 27.10 | 4.07 | 2,610 |   |  			
            | 2/27/2013 | 0.00 / 0.00% | 27.30 | 27.30 | 26.90 | 27.10 | 27.10 | 4.07 | 45,520 |   |  
            | 2/26/2013 | +0.30 / +1.12% | 26.80 | 27.30 | 26.80 | 27.10 | 27.10 | 4.07 | 40,600 |   |  			
            | 2/25/2013 | +0.20 / +0.75% | 26.80 | 26.80 | 26.80 | 26.80 | 26.80 | 4.03 | 320 |   |  
            | 2/22/2013 | -0.30 / -1.12% | 26.50 | 26.70 | 26.50 | 26.60 | 26.60 | 4.00 | 15,560 |   |  			
            | 2/21/2013 | -0.20 / -0.74% | 27.00 | 27.20 | 26.90 | 26.90 | 26.90 | 4.04 | 18,110 |   |  
            | 2/20/2013 | +0.10 / +0.37% | 27.00 | 27.60 | 26.90 | 27.10 | 27.10 | 4.07 | 6,220 |   |  			
            | 2/19/2013 | -0.80 / -2.88% | 26.90 | 27.90 | 26.90 | 27.00 | 27.00 | 4.06 | 8,770 |   |  
            | 2/18/2013 | +0.30 / +1.09% | 27.80 | 27.80 | 27.80 | 27.80 | 27.80 | 4.18 | 200 |   |  			
            | 2/8/2013 | +0.10 / +0.36% | 27.20 | 27.50 | 26.70 | 27.50 | 27.50 | 4.13 | 790 |   |  
            | 2/7/2013 | 0.00 / 0.00% | 27.40 | 27.40 | 27.40 | 27.40 | 27.40 | 4.12 | 0 |   |  			
            | 2/6/2013 | +0.90 / +3.40% | 26.50 | 27.40 | 26.50 | 27.40 | 27.40 | 4.12 | 10,010 |   |  
            | 2/5/2013 | -0.10 / -0.38% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 3.98 | 5,720 |   |  			
            | 2/4/2013 | -0.70 / -2.56% | 26.60 | 26.60 | 26.60 | 26.60 | 26.60 | 4.00 | 10,680 |   |  
            | 2/1/2013 | -0.20 / -0.73% | 26.70 | 27.30 | 26.60 | 27.30 | 27.30 | 4.10 | 3,010 |   |  			
            | 1/31/2013 | -0.30 / -1.08% | 26.80 | 27.50 | 26.80 | 27.50 | 27.50 | 4.13 | 800 |   |  
            | 1/30/2013 | +0.90 / +3.35% | 26.60 | 27.80 | 26.60 | 27.80 | 27.80 | 4.18 | 1,090 |   |  |