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                    Closing price on 9/13/2010
                 |  |  
    
        |           
                
                    | Open | 16.40 |  
                    | High | 17.00 |  
                    | Low | 16.10 |  
                    | Volume | 105,500 |  
                    | Split-adjusted Price | 6.07 |  
                
             | 
 |  MAC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/13/2010 | -1.10 / -6.40% | 16.40 | 17.00 | 16.10 | 16.10 | 16.10 | 6.07 | 105,500 |   |  
            | 9/10/2010 | +0.60 / +3.61% | 17.50 | 17.50 | 16.00 | 17.20 | 17.20 | 6.49 | 260,000 |   |  			
            | 9/9/2010 | +1.10 / +7.10% | 16.30 | 16.60 | 15.80 | 16.60 | 16.60 | 6.26 | 81,800 |   |  
            | 9/8/2010 | -0.90 / -5.49% | 17.00 | 17.40 | 15.30 | 15.50 | 15.50 | 5.85 | 88,200 |   |  			
            | 9/7/2010 | +1.00 / +6.49% | 16.40 | 16.40 | 15.50 | 16.40 | 16.40 | 6.19 | 180,000 |   |  
            | 9/6/2010 | +1.00 / +6.94% | 15.40 | 15.40 | 15.40 | 15.40 | 15.40 | 5.81 | 7,300 |   |  			
            | 9/1/2010 | +0.80 / +5.88% | 14.30 | 14.40 | 14.30 | 14.40 | 14.40 | 5.43 | 35,100 |   |  
            | 8/31/2010 | +0.80 / +6.25% | 13.50 | 13.60 | 13.00 | 13.60 | 13.60 | 5.13 | 82,500 |   |  			
            | 8/30/2010 | +1.00 / +8.47% | 12.80 | 12.80 | 12.80 | 12.80 | 12.80 | 4.83 | 2,800 |   |  
            | 8/27/2010 | -0.40 / -3.28% | 12.10 | 12.40 | 11.70 | 11.80 | 11.80 | 4.45 | 50,400 |   |  			
            | 8/26/2010 | -0.90 / -6.87% | 13.80 | 13.80 | 12.20 | 12.20 | 12.20 | 4.60 | 32,600 |   |  
            | 8/25/2010 | -0.80 / -5.76% | 13.20 | 13.20 | 13.10 | 13.10 | 13.10 | 4.94 | 21,100 |   |  			
            | 8/24/2010 | -1.30 / -8.55% | 14.90 | 14.90 | 13.90 | 13.90 | 13.90 | 5.24 | 42,700 |   |  
            | 8/23/2010 | -0.20 / -1.30% | 15.50 | 15.50 | 14.80 | 15.20 | 15.20 | 5.74 | 14,000 |   |  			
            | 8/20/2010 | -0.60 / -3.75% | 16.30 | 16.30 | 14.90 | 15.40 | 15.40 | 5.81 | 27,700 |   |  
            | 8/19/2010 | -0.30 / -1.84% | 16.00 | 16.20 | 15.40 | 16.00 | 16.00 | 6.04 | 15,800 |   |  			
            | 8/18/2010 | -0.70 / -4.12% | 16.20 | 16.50 | 16.20 | 16.30 | 16.30 | 6.15 | 28,600 |   |  
            | 8/17/2010 | -0.40 / -2.30% | 17.50 | 17.50 | 16.90 | 17.00 | 17.00 | 6.41 | 21,700 |   |  			
            | 8/16/2010 | +0.50 / +2.96% | 16.80 | 17.40 | 16.80 | 17.40 | 17.40 | 6.57 | 69,200 |   |  
            | 8/13/2010 | +1.10 / +6.96% | 16.20 | 16.90 | 16.00 | 16.90 | 16.90 | 6.38 | 25,700 |   |  			
            | 8/12/2010 | -1.50 / -8.67% | 16.90 | 17.00 | 15.80 | 15.80 | 15.80 | 5.96 | 88,000 |   |  
            | 8/11/2010 | +0.80 / +4.85% | 17.10 | 17.30 | 16.40 | 17.30 | 17.30 | 6.53 | 49,400 |   |  			
            | 8/10/2010 | -1.10 / -6.25% | 17.10 | 17.10 | 16.40 | 16.50 | 16.50 | 6.23 | 87,400 |   |  
            | 8/9/2010 | -1.20 / -6.38% | 19.50 | 19.50 | 17.60 | 17.60 | 17.60 | 6.64 | 66,400 |   |  			
            | 8/6/2010 | 0.00 / 0.00% | 18.50 | 19.40 | 18.50 | 18.80 | 18.80 | 7.09 | 60,900 |   |  
            | 8/5/2010 | +1.10 / +6.21% | 18.30 | 18.80 | 17.60 | 18.80 | 18.80 | 7.09 | 71,900 |   |  			
            | 8/4/2010 | -0.90 / -4.84% | 18.00 | 18.00 | 17.60 | 17.70 | 17.70 | 6.68 | 95,000 |   |  
            | 8/3/2010 | -1.40 / -7.00% | 19.30 | 19.50 | 18.60 | 18.60 | 18.60 | 7.02 | 75,000 |   |  			
            | 8/2/2010 | -0.30 / -1.48% | 20.50 | 20.50 | 19.80 | 20.00 | 20.00 | 7.55 | 31,900 |   |  
            | 7/30/2010 | +0.50 / +2.53% | 20.30 | 20.80 | 19.60 | 20.30 | 20.30 | 7.66 | 79,600 |   |  |