| 
                 
                    Closing price on 1/9/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.70 | 
                 
                
                    | High | 
                    4.70 | 
                 
                
                    | Low | 
                    4.70 | 
                     
                
                    | Volume | 
                    1,100 | 
                                 
                
                    | Split-adjusted Price | 
                    4.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDU Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/9/2012
             | 
            
                +0.10 / +2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2012
             | 
            
                -0.20 / -4.17%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                14,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2012
             | 
            
                +0.10 / +2.13%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.50
             |                           
            
                4.80
             | 
            
                4.80
             |                     
            
                4.80
             |                                 
            
                10,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2012
             | 
            
                +0.10 / +2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2011
             | 
            
                +0.30 / +6.98%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.20
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2011
             | 
            
                -0.30 / -6.52%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                36,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                29,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2011
             | 
            
                -0.30 / -6.12%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.60
             |                                 
            
                22,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2011
             | 
            
                -0.20 / -3.92%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.90
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2011
             | 
            
                -0.30 / -5.56%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                5.10
             |                                 
            
                17,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2011
             | 
            
                -0.40 / -6.90%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.40
             |                     
            
                5.40
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2011
             | 
            
                +0.30 / +5.45%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.80
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2011
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.50
             |                                 
            
                17,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2011
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.50
             |                                 
            
                5,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2011
             | 
            
                +0.10 / +1.85%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.50
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2011
             | 
            
                -0.20 / -3.57%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.40
             |                     
            
                5.40
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2011
             | 
            
                -0.20 / -3.45%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                5.60
             |                                 
            
                19,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2011
             | 
            
                -0.40 / -6.45%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.80
             |                                 
            
                7,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/12/2011
             | 
            
                -0.30 / -4.62%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                6.20
             |                                 
            
                11,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2011
             | 
            
                -0.30 / -4.41%
             |             
            
                6.50
             |           
            
                6.90
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                6.50
             |                                 
            
                15,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2011
             | 
            
                -0.50 / -6.85%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.80
             |                                 
            
                17,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                7.30
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2011
             | 
            
                +0.40 / +5.80%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                7.30
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/5/2011
             | 
            
                +0.50 / +7.81%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                6.90
             |                                 
            
                45,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2011
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.70
             |               
            
                6.20
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                6.40
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2011
             | 
            
                +0.30 / +4.92%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                6.40
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2011
             | 
            
                -0.40 / -6.15%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                6.10
             |                                 
            
                13,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2011
             | 
            
                -0.30 / -4.41%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                6.50
             |                                 
            
                7,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2011
             | 
            
                +0.40 / +6.25%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                6.80
             |                                 
            
                14,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |