| 
    
        
            | 
                    Closing price on 4/26/2011
                 |  |  
    
        |           
                
                    | Open | 12.70 |  
                    | High | 12.70 |  
                    | Low | 12.10 |  
                    | Volume | 52,750 |  
                    | Split-adjusted Price | 5.30 |  
                
             | 
 |  MDG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/26/2011 | -0.60 / -4.72% | 12.70 | 12.70 | 12.10 | 12.10 | 12.10 | 5.30 | 52,750 |   |  
            | 4/25/2011 | +0.50 / +4.10% | 12.50 | 12.70 | 12.20 | 12.70 | 12.70 | 5.56 | 94,530 |   |  			
            | 4/22/2011 | -0.10 / -0.81% | 12.40 | 12.40 | 12.00 | 12.20 | 12.20 | 5.34 | 24,520 |   |  
            | 4/21/2011 | +0.30 / +2.50% | 12.00 | 12.30 | 12.00 | 12.30 | 12.30 | 5.38 | 61,030 |   |  			
            | 4/20/2011 | 0.00 / 0.00% | 12.50 | 12.50 | 11.90 | 12.00 | 12.00 | 5.25 | 85,660 |   |  
            | 4/19/2011 | -0.60 / -4.76% | 12.50 | 12.90 | 12.00 | 12.00 | 12.00 | 5.25 | 99,470 |   |  			
            | 4/18/2011 | -0.30 / -2.33% | 12.80 | 13.00 | 12.40 | 12.60 | 12.60 | 5.51 | 88,600 |   |  
            | 4/15/2011 | -0.50 / -3.73% | 13.30 | 13.60 | 12.90 | 12.90 | 12.90 | 5.65 | 71,840 |   |  			
            | 4/14/2011 | 0.00 / 0.00% | 13.30 | 13.50 | 13.20 | 13.40 | 13.40 | 5.86 | 53,360 |   |  
            | 4/13/2011 | 0.00 / 0.00% | 13.40 | 13.50 | 13.20 | 13.40 | 13.40 | 5.86 | 58,040 |   |  			
            | 4/8/2011 | +0.10 / +0.75% | 13.50 | 13.70 | 13.40 | 13.40 | 13.40 | 5.86 | 47,860 |   |  
            | 4/7/2011 | -0.70 / -5.00% | 14.00 | 14.00 | 13.30 | 13.30 | 13.30 | 5.82 | 106,690 |   |  			
            | 4/6/2011 | +0.30 / +2.19% | 13.70 | 14.10 | 13.60 | 14.00 | 14.00 | 6.13 | 37,400 |   |  
            | 4/5/2011 | +0.10 / +0.74% | 13.40 | 13.80 | 13.10 | 13.70 | 13.70 | 6.00 | 27,010 |   |  			
            | 4/4/2011 | -0.70 / -4.90% | 14.10 | 14.20 | 13.60 | 13.60 | 13.60 | 5.95 | 32,800 |   |  
            | 4/1/2011 | +0.50 / +3.62% | 13.80 | 14.40 | 13.80 | 14.30 | 14.30 | 6.26 | 128,530 |   |  			
            | 3/31/2011 | +0.60 / +4.55% | 13.30 | 13.80 | 13.20 | 13.80 | 13.80 | 6.04 | 116,640 |   |  
            | 3/30/2011 | +0.40 / +3.13% | 12.70 | 13.40 | 12.70 | 13.20 | 13.20 | 5.78 | 53,680 |   |  			
            | 3/29/2011 | -0.20 / -1.54% | 13.40 | 13.40 | 12.80 | 12.80 | 12.80 | 5.60 | 21,880 |   |  
            | 3/28/2011 | -0.50 / -3.70% | 13.20 | 13.70 | 13.00 | 13.00 | 13.00 | 5.69 | 49,900 |   |  			
            | 3/25/2011 | -0.30 / -2.17% | 13.60 | 13.90 | 13.20 | 13.50 | 13.50 | 5.91 | 51,260 |   |  
            | 3/24/2011 | +0.10 / +0.73% | 13.60 | 14.30 | 13.60 | 13.80 | 13.80 | 6.04 | 50,030 |   |  			
            | 3/23/2011 | +0.60 / +4.58% | 13.70 | 13.70 | 13.30 | 13.70 | 13.70 | 6.00 | 78,670 |   |  
            | 3/22/2011 | +0.60 / +4.80% | 12.40 | 13.10 | 12.40 | 13.10 | 13.10 | 5.73 | 102,560 |   |  			
            | 3/21/2011 | -0.30 / -2.34% | 12.80 | 12.80 | 12.50 | 12.50 | 12.50 | 5.47 | 26,230 |   |  
            | 3/18/2011 | +0.30 / +2.40% | 12.20 | 12.80 | 12.20 | 12.80 | 12.80 | 5.60 | 5,520 |   |  			
            | 3/17/2011 | +0.50 / +4.17% | 12.20 | 12.60 | 12.20 | 12.50 | 12.50 | 5.47 | 2,670 |   |  
            | 3/16/2011 | 0.00 / 0.00% | 12.00 | 12.00 | 12.00 | 12.00 | 12.00 | 5.25 | 7,740 |   |  			
            | 3/15/2011 | -0.20 / -1.64% | 12.00 | 12.00 | 12.00 | 12.00 | 12.00 | 5.25 | 6,330 |   |  
            | 3/14/2011 | -0.60 / -4.69% | 12.40 | 12.40 | 12.20 | 12.20 | 12.20 | 5.34 | 13,010 |   |  |