| 
    
        
            | 
                    Closing price on 1/19/2011
                 |  |  
    
        |           
                
                    | Open | 17.40 |  
                    | High | 19.00 |  
                    | Low | 17.40 |  
                    | Volume | 284,980 |  
                    | Split-adjusted Price | 8.05 |  
                
             | 
 |  MDG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  |