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                    Closing price on 4/8/2013
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                    | Open | 30.50 |  
                    | High | 30.50 |  
                    | Low | 30.00 |  
                    | Volume | 1,550 |  
                    | Split-adjusted Price | 4.57 |  
                
             | 
 |  ACC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/8/2013 | +0.60 / +2.01% | 30.50 | 30.50 | 30.00 | 30.40 | 30.40 | 4.57 | 1,550 |   |  
            | 4/5/2013 | 0.00 / 0.00% | 30.00 | 30.00 | 29.80 | 29.80 | 29.80 | 4.48 | 4,320 |   |  			
            | 4/4/2013 | +0.20 / +0.68% | 30.40 | 30.40 | 29.60 | 29.80 | 29.80 | 4.48 | 2,150 |   |  
            | 4/3/2013 | +0.10 / +0.34% | 29.50 | 30.50 | 29.50 | 29.60 | 29.60 | 4.45 | 3,510 |   |  			
            | 4/2/2013 | -0.90 / -2.96% | 30.20 | 30.50 | 29.50 | 29.50 | 29.50 | 4.43 | 8,520 |   |  
            | 4/1/2013 | -0.10 / -0.33% | 30.00 | 31.00 | 30.00 | 30.40 | 30.40 | 4.57 | 8,610 |   |  			
            | 3/29/2013 | +0.50 / +1.67% | 30.50 | 30.50 | 30.00 | 30.50 | 30.50 | 4.58 | 9,200 |   |  
            | 3/28/2013 | -1.30 / -4.15% | 31.00 | 31.10 | 30.00 | 30.00 | 30.00 | 4.51 | 9,990 |   |  			
            | 3/27/2013 | -0.60 / -1.88% | 31.50 | 31.50 | 31.00 | 31.30 | 31.30 | 4.70 | 2,160 |   |  
            | 3/26/2013 | +0.70 / +2.24% | 30.80 | 31.90 | 30.80 | 31.90 | 31.90 | 4.79 | 9,210 |   |  			
            | 3/25/2013 | -1.30 / -4.00% | 32.30 | 32.50 | 31.20 | 31.20 | 31.20 | 4.69 | 3,830 |   |  
            | 3/22/2013 | -1.30 / -3.85% | 33.50 | 33.50 | 31.50 | 32.50 | 32.50 | 4.88 | 7,350 |   |  			
            | 3/21/2013 | +0.10 / +0.30% | 33.70 | 33.90 | 32.50 | 33.80 | 33.80 | 5.08 | 19,500 |   |  
            | 3/20/2013 | 0.00 / 0.00% | 34.00 | 34.00 | 33.00 | 33.70 | 33.70 | 5.07 | 11,030 |   |  			
            | 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 |   |  |