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                    Closing price on 4/28/2010
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        |           
                
                    | Open | 38.50 |  
                    | High | 38.60 |  
                    | Low | 36.90 |  
                    | Volume | 363,200 |  
                    | Split-adjusted Price | 14.15 |  
                
             | 
 |  MAC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/28/2010 | -2.00 / -5.06% | 38.50 | 38.60 | 36.90 | 37.50 | 37.50 | 14.15 | 363,200 |   |  
            | 4/27/2010 | -0.40 / -1.00% | 40.00 | 40.60 | 38.60 | 39.50 | 39.50 | 14.90 | 244,400 |   |  			
            | 4/26/2010 | +2.80 / +7.55% | 37.20 | 41.10 | 36.50 | 39.90 | 39.90 | 15.05 | 363,500 |   |  
            | 4/22/2010 | -2.70 / -6.78% | 41.50 | 41.90 | 37.00 | 37.10 | 37.10 | 14.00 | 360,200 |   |  			
            | 4/21/2010 | +2.50 / +6.70% | 39.80 | 39.90 | 36.60 | 39.80 | 39.80 | 15.02 | 531,100 |   |  
            | 4/20/2010 | +2.30 / +6.57% | 37.30 | 37.30 | 37.20 | 37.30 | 37.30 | 14.07 | 338,200 |   |  			
            | 4/19/2010 | +2.20 / +6.71% | 35.00 | 35.00 | 33.00 | 35.00 | 35.00 | 13.21 | 434,000 |   |  
            | 4/16/2010 | +2.10 / +6.84% | 32.80 | 32.80 | 32.80 | 32.80 | 32.80 | 12.38 | 31,400 |   |  			
            | 4/15/2010 | +1.80 / +6.23% | 30.70 | 30.70 | 30.70 | 30.70 | 30.70 | 11.58 | 31,100 |   |  
            | 4/14/2010 | +0.90 / +3.21% | 27.20 | 28.90 | 27.20 | 28.90 | 28.90 | 10.90 | 56,000 |   |  			
            | 4/13/2010 | 0.00 / 0.00% | 26.90 | 29.00 | 26.90 | 28.00 | 28.00 | 10.56 | 386,100 |   |  
            | 4/12/2010 | -1.20 / -4.11% | 30.00 | 32.20 | 28.00 | 28.00 | 28.00 | 10.56 | 405,500 |   |  			
            | 4/9/2010 | +0.10 / +0.34% | 30.70 | 30.90 | 28.70 | 29.20 | 29.20 | 11.02 | 359,600 |   |  
            | 4/8/2010 | +1.90 / +6.99% | 29.00 | 29.10 | 27.50 | 29.10 | 29.10 | 10.98 | 839,000 |   |  			
            | 4/7/2010 | +1.70 / +6.67% | 27.20 | 27.20 | 26.90 | 27.20 | 27.20 | 10.26 | 225,500 |   |  
            | 4/6/2010 | +1.60 / +6.69% | 25.50 | 25.50 | 24.60 | 25.50 | 25.50 | 9.62 | 236,800 |   |  			
            | 4/5/2010 | +1.30 / +5.75% | 23.90 | 23.90 | 23.90 | 23.90 | 23.90 | 9.02 | 155,600 |   |  
            | 4/2/2010 | +0.90 / +4.15% | 21.20 | 22.60 | 20.50 | 22.60 | 22.60 | 8.53 | 392,500 |   |  			
            | 4/1/2010 | -0.30 / -1.36% | 20.90 | 22.30 | 20.90 | 21.70 | 21.70 | 8.19 | 313,400 |   |  
            | 3/31/2010 | +0.90 / +4.27% | 22.50 | 22.50 | 21.80 | 22.00 | 22.00 | 8.30 | 519,600 |   |  			
            | 3/30/2010 | +1.20 / +6.03% | 21.10 | 21.10 | 21.00 | 21.10 | 21.10 | 7.96 | 423,300 |   |  
            | 3/29/2010 | +1.20 / +6.42% | 19.90 | 19.90 | 19.00 | 19.90 | 19.90 | 7.51 | 469,800 |   |  			
            | 3/26/2010 | +1.30 / +7.47% | 17.90 | 18.70 | 17.90 | 18.70 | 18.70 | 7.06 | 166,900 |   |  
            | 3/25/2010 | -1.40 / -7.45% | 18.50 | 18.50 | 17.40 | 17.40 | 17.40 | 6.57 | 175,900 |   |  			
            | 3/24/2010 | -0.60 / -3.09% | 20.30 | 20.30 | 18.10 | 18.80 | 18.80 | 7.09 | 105,600 |   |  
            | 3/23/2010 | +1.00 / +5.43% | 19.40 | 19.40 | 18.50 | 19.40 | 19.40 | 7.32 | 211,800 |   |  			
            | 3/22/2010 | +1.20 / +6.98% | 18.40 | 18.40 | 17.40 | 18.40 | 18.40 | 6.94 | 258,400 |   |  
            | 3/19/2010 | +1.10 / +6.83% | 17.20 | 17.20 | 17.00 | 17.20 | 17.20 | 6.49 | 181,000 |   |  			
            | 3/18/2010 | +1.00 / +6.62% | 16.10 | 16.10 | 16.00 | 16.10 | 16.10 | 6.07 | 81,700 |   |  
            | 3/17/2010 | +1.00 / +7.09% | 14.90 | 15.10 | 14.50 | 15.10 | 15.10 | 5.70 | 73,200 |   |  |