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                    Closing price on 5/17/2011
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                    | Open | 6.10 |  
                    | High | 6.10 |  
                    | Low | 5.80 |  
                    | Volume | 28,100 |  
                    | Split-adjusted Price | 2.19 |  
                
             | 
 |  MAC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/17/2011 | -0.20 / -3.33% | 6.10 | 6.10 | 5.80 | 5.80 | 5.80 | 2.19 | 28,100 |   |  
            | 5/16/2011 | +0.10 / +1.69% | 6.00 | 6.30 | 5.80 | 6.00 | 6.00 | 2.26 | 56,500 |   |  			
            | 5/13/2011 | 0.00 / 0.00% | 5.80 | 6.00 | 5.80 | 5.90 | 5.90 | 2.23 | 12,200 |   |  
            | 5/12/2011 | -0.20 / -3.28% | 5.90 | 6.10 | 5.90 | 5.90 | 5.90 | 2.23 | 26,200 |   |  			
            | 5/11/2011 | +0.20 / +3.39% | 6.10 | 6.10 | 6.00 | 6.10 | 6.10 | 2.30 | 8,600 |   |  
            | 5/10/2011 | -0.10 / -1.67% | 6.10 | 6.20 | 5.90 | 5.90 | 5.90 | 2.23 | 59,200 |   |  			
            | 5/9/2011 | 0.00 / 0.00% | 6.20 | 6.20 | 5.90 | 6.00 | 6.00 | 2.26 | 27,600 |   |  
            | 5/6/2011 | +0.30 / +5.26% | 5.80 | 6.10 | 5.60 | 6.00 | 6.00 | 2.26 | 48,800 |   |  			
            | 5/5/2011 | -0.40 / -6.56% | 6.00 | 6.00 | 5.70 | 5.70 | 5.70 | 2.15 | 67,500 |   |  
            | 5/4/2011 | 0.00 / 0.00% | 6.20 | 6.20 | 6.00 | 6.10 | 6.10 | 2.30 | 26,600 |   |  			
            | 4/29/2011 | -0.20 / -3.17% | 6.30 | 6.30 | 6.10 | 6.10 | 6.10 | 2.30 | 66,600 |   |  
            | 4/28/2011 | -0.10 / -1.56% | 6.30 | 6.30 | 6.20 | 6.30 | 6.30 | 2.38 | 7,200 |   |  			
            | 4/27/2011 | -0.10 / -1.54% | 6.50 | 6.50 | 6.20 | 6.40 | 6.40 | 2.41 | 33,000 |   |  
            | 4/26/2011 | -0.10 / -1.52% | 7.00 | 7.00 | 6.30 | 6.50 | 6.50 | 2.45 | 55,500 |   |  			
            | 4/25/2011 | +0.20 / +3.13% | 6.50 | 6.60 | 6.50 | 6.60 | 6.60 | 2.49 | 56,400 |   |  
            | 4/22/2011 | 0.00 / 0.00% | 6.00 | 6.50 | 6.00 | 6.40 | 6.40 | 2.41 | 65,000 |   |  			
            | 4/21/2011 | -0.40 / -5.88% | 6.50 | 6.50 | 6.40 | 6.40 | 6.40 | 2.41 | 134,800 |   |  
            | 4/20/2011 | -0.50 / -6.85% | 7.00 | 7.00 | 6.80 | 6.80 | 6.80 | 2.57 | 179,900 |   |  			
            | 4/19/2011 | -0.40 / -5.19% | 7.90 | 7.90 | 7.20 | 7.30 | 7.30 | 2.75 | 98,700 |   |  
            | 4/18/2011 | -0.10 / -1.28% | 7.80 | 7.80 | 7.50 | 7.70 | 7.70 | 2.91 | 65,300 |   |  			
            | 4/15/2011 | -0.30 / -3.70% | 8.20 | 8.20 | 7.80 | 7.80 | 7.80 | 2.94 | 44,200 |   |  
            | 4/14/2011 | -0.10 / -1.22% | 8.00 | 8.30 | 8.00 | 8.10 | 8.10 | 3.06 | 26,700 |   |  			
            | 4/13/2011 | +0.10 / +1.23% | 8.60 | 8.60 | 8.20 | 8.20 | 8.20 | 3.09 | 12,100 |   |  
            | 4/8/2011 | -0.20 / -2.41% | 8.50 | 8.50 | 8.10 | 8.10 | 8.10 | 3.06 | 20,000 |   |  			
            | 4/7/2011 | -0.20 / -2.35% | 8.70 | 8.70 | 8.20 | 8.30 | 8.30 | 3.13 | 23,600 |   |  
            | 4/6/2011 | +0.30 / +3.66% | 8.00 | 8.50 | 8.00 | 8.50 | 8.50 | 3.21 | 51,900 |   |  			
            | 4/5/2011 | -0.10 / -1.20% | 8.20 | 8.20 | 7.90 | 8.20 | 8.20 | 3.09 | 33,500 |   |  
            | 4/4/2011 | -0.10 / -1.19% | 8.40 | 8.40 | 8.10 | 8.30 | 8.30 | 3.13 | 32,800 |   |  			
            | 4/1/2011 | 0.00 / 0.00% | 8.30 | 8.50 | 8.20 | 8.40 | 8.40 | 3.17 | 56,700 |   |  
            | 3/31/2011 | 0.00 / 0.00% | 8.70 | 8.70 | 8.30 | 8.40 | 8.40 | 3.17 | 36,000 |   |  |