| 
    
        
            | 
                    Closing price on 1/28/2011
                 |  |  
    
        |           
                
                    | Open | 16.00 |  
                    | High | 16.50 |  
                    | Low | 16.00 |  
                    | Volume | 14,710 |  
                    | Split-adjusted Price | 7.22 |  
                
             | 
 |  MDG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/28/2011 | +0.70 / +4.43% | 16.00 | 16.50 | 16.00 | 16.50 | 16.50 | 7.22 | 14,710 |   |  
            | 1/27/2011 | -0.60 / -3.66% | 17.10 | 17.10 | 15.80 | 15.80 | 15.80 | 6.91 | 44,810 |   |  			
            | 1/26/2011 | -0.70 / -4.09% | 17.10 | 17.10 | 16.40 | 16.40 | 16.40 | 7.18 | 18,980 |   |  
            | 1/25/2011 | -0.90 / -5.00% | 17.10 | 17.10 | 17.10 | 17.10 | 17.10 | 7.48 | 28,890 |   |  			
            | 1/24/2011 | +0.10 / +0.56% | 17.40 | 18.00 | 17.10 | 18.00 | 18.00 | 7.88 | 10,300 |   |  
            | 1/21/2011 | +0.10 / +0.56% | 17.30 | 18.00 | 17.30 | 17.90 | 17.90 | 7.83 | 22,880 |   |  			
            | 1/20/2011 | -0.60 / -3.26% | 18.10 | 18.40 | 17.80 | 17.80 | 17.80 | 7.79 | 123,450 |   |  
            | 1/19/2011 | +0.30 / +1.66% | 17.40 | 19.00 | 17.40 | 18.40 | 18.40 | 8.05 | 284,980 |   |  			
            | 1/18/2011 | -0.90 / -4.74% | 18.30 | 18.80 | 18.10 | 18.10 | 18.10 | 7.92 | 4,320 |   |  
            | 1/17/2011 | +0.80 / +4.40% | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 8.31 | 1,010 |   |  			
            | 1/14/2011 | -0.80 / -4.21% | 18.10 | 19.00 | 18.10 | 18.20 | 18.20 | 7.96 | 162,550 |   |  
            | 1/13/2011 | -1.00 / -5.00% | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 8.31 | 110 |   |  			
            | 1/12/2011 | +20.00 / +0.00% | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 8.75 | 105,230 |   |  |