| 
                 
                    Closing price on 5/9/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.30 | 
                 
                
                    | High | 
                    7.60 | 
                 
                
                    | Low | 
                    7.30 | 
                     
                
                    | Volume | 
                    28,600 | 
                                 
                
                    | Split-adjusted Price | 
                    4.09 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MDF Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/9/2013
             | 
            
                +0.20 / +2.74%
             |             
            
                7.30
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.09
             |                                 
            
                28,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                3.98
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2013
             | 
            
                -0.40 / -5.19%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                3.98
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2013
             | 
            
                +0.20 / +2.67%
             |             
            
                6.80
             |           
            
                7.70
             |               
            
                6.80
             |                           
            
                7.70
             | 
            
                7.30
             |                     
            
                4.20
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.09
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                4.09
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2013
             | 
            
                +0.20 / +2.63%
             |             
            
                7.60
             |           
            
                7.80
             |               
            
                6.90
             |                           
            
                7.80
             | 
            
                7.60
             |                     
            
                4.25
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                4.14
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2013
             | 
            
                +0.40 / +5.56%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                4.14
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                3.93
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2013
             | 
            
                +0.20 / +2.86%
             |             
            
                7.00
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.10
             |                     
            
                3.93
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2013
             | 
            
                -0.10 / -1.41%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.10
             |                     
            
                3.82
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2013
             | 
            
                +0.10 / +1.43%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                3.87
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.82
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.82
             |                                 
            
                9,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.82
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2013
             | 
            
                +0.50 / +7.69%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                3.82
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                3.54
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2013
             | 
            
                +0.50 / +8.33%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                3.54
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2013
             | 
            
                +0.50 / +9.09%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                3.27
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                3.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2013
             | 
            
                -0.60 / -9.84%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                3.00
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2013
             | 
            
                -0.20 / -3.17%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                3.33
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2013
             | 
            
                +0.50 / +8.62%
             |             
            
                6.10
             |           
            
                6.30
             |               
            
                6.10
             |                           
            
                6.30
             | 
            
                6.10
             |                     
            
                3.44
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2013
             | 
            
                +0.50 / +9.43%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                3.16
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2013
             | 
            
                -0.50 / -8.62%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                2.89
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                3.16
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                3.16
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2013
             | 
            
                -0.40 / -6.45%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                3.16
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2013
             | 
            
                -0.60 / -8.82%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                3.38
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |