| 
                 
                    Closing price on 11/8/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.40 | 
                 
                
                    | High | 
                    8.20 | 
                 
                
                    | Low | 
                    7.40 | 
                     
                
                    | Volume | 
                    8,800 | 
                                 
                
                    | Split-adjusted Price | 
                    7.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDU Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/8/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.40
             |           
            
                8.20
             |               
            
                7.40
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                7.80
             |                                 
            
                8,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2011
             | 
            
                -0.50 / -6.02%
             |             
            
                7.70
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                7.80
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2011
             | 
            
                -0.20 / -2.35%
             |             
            
                8.20
             |           
            
                8.40
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                8.30
             |                                 
            
                14,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2011
             | 
            
                -0.20 / -2.30%
             |             
            
                8.50
             |           
            
                8.70
             |               
            
                8.10
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                8.50
             |                                 
            
                10,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2011
             | 
            
                -0.30 / -3.33%
             |             
            
                8.70
             |           
            
                8.70
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                8.70
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2011
             | 
            
                -0.40 / -4.26%
             |             
            
                9.00
             |           
            
                9.20
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                9.00
             |                                 
            
                5,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2011
             | 
            
                -0.20 / -2.08%
             |             
            
                8.90
             |           
            
                9.90
             |               
            
                8.90
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                9.40
             |                                 
            
                18,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2011
             | 
            
                +0.60 / +6.67%
             |             
            
                9.00
             |           
            
                9.60
             |               
            
                9.00
             |                           
            
                9.60
             | 
            
                9.60
             |                     
            
                9.60
             |                                 
            
                22,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2011
             | 
            
                -0.50 / -5.26%
             |             
            
                8.90
             |           
            
                9.10
             |               
            
                8.90
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                9.00
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2011
             | 
            
                +0.30 / +3.26%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2011
             | 
            
                0.00 / 0.00%
             |             
            
                9.10
             |           
            
                9.20
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                9.20
             |                                 
            
                6,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2011
             | 
            
                -0.30 / -3.16%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                9.20
             |                                 
            
                10,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                2,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2011
             | 
            
                0.00 / 0.00%
             |             
            
                9.40
             |           
            
                9.60
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                6,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2011
             | 
            
                +0.70 / +7.95%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2011
             | 
            
                -0.40 / -4.35%
             |             
            
                8.90
             |           
            
                9.10
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                8.80
             |                                 
            
                12,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2011
             | 
            
                -0.50 / -5.15%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                9.20
             |                                 
            
                10,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2011
             | 
            
                -0.30 / -3.00%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                9.70
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                9.70
             |                                 
            
                8,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2011
             | 
            
                +0.40 / +4.17%
             |             
            
                9.70
             |           
            
                10.10
             |               
            
                9.70
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                10.00
             |                                 
            
                11,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2011
             | 
            
                -0.60 / -5.88%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.60
             |                           
            
                9.60
             | 
            
                9.60
             |                     
            
                9.60
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2011
             | 
            
                +0.10 / +0.99%
             |             
            
                10.30
             |           
            
                10.30
             |               
            
                10.20
             |                           
            
                10.20
             | 
            
                10.20
             |                     
            
                10.20
             |                                 
            
                24,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2011
             | 
            
                -0.50 / -4.72%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.10
             |                           
            
                10.10
             | 
            
                10.10
             |                     
            
                10.10
             |                                 
            
                17,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2011
             | 
            
                -0.60 / -5.36%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                10.60
             |                                 
            
                19,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2011
             | 
            
                +0.70 / +6.67%
             |             
            
                11.00
             |           
            
                11.20
             |               
            
                10.80
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                11.20
             |                                 
            
                23,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2011
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                10.50
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                10.50
             |                                 
            
                21,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2011
             | 
            
                -0.10 / -0.94%
             |             
            
                10.50
             |           
            
                10.60
             |               
            
                10.10
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                10.50
             |                                 
            
                9,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2011
             | 
            
                -0.40 / -3.64%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                10.40
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                10.60
             |                                 
            
                27,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2011
             | 
            
                -0.40 / -3.51%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                10.90
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                11.00
             |                                 
            
                37,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2011
             | 
            
                -0.80 / -6.56%
             |             
            
                11.50
             |           
            
                11.80
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                11.40
             |                                 
            
                129,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2011
             | 
            
                -0.70 / -5.43%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.10
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                12.20
             |                                 
            
                76,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |