| 
                 
                    Closing price on 6/10/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    8.50 | 
                 
                
                    | High | 
                    8.90 | 
                 
                
                    | Low | 
                    8.50 | 
                     
                
                    | Volume | 
                    52,700 | 
                                 
                
                    | Split-adjusted Price | 
                    8.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/10/2008
             | 
            
                +0.20 / +2.30%
             |             
            
                8.50
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.90
             | 
            
                8.67
             |                     
            
                8.90
             |                                 
            
                52,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2008
             | 
            
                -0.20 / -2.25%
             |             
            
                8.70
             |           
            
                8.70
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                8.70
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2008
             | 
            
                -0.20 / -2.20%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                8.90
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2008
             | 
            
                -0.20 / -2.15%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                9.10
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2008
             | 
            
                -0.20 / -2.11%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                9.30
             |                           
            
                9.30
             | 
            
                9.30
             |                     
            
                9.30
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2008
             | 
            
                -0.20 / -2.06%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2008
             | 
            
                -0.20 / -2.02%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.70
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                9.70
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2008
             | 
            
                -0.30 / -2.94%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                9.90
             |                                 
            
                13,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2008
             | 
            
                -0.30 / -2.86%
             |             
            
                10.20
             |           
            
                10.80
             |               
            
                10.20
             |                           
            
                10.20
             | 
            
                10.24
             |                     
            
                10.20
             |                                 
            
                47,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2008
             | 
            
                -0.30 / -2.78%
             |             
            
                10.50
             |           
            
                10.50
             |               
            
                10.50
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                10.50
             |                                 
            
                14,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2008
             | 
            
                -0.30 / -2.70%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                10.80
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2008
             | 
            
                0.00 / 0.00%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                11.10
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2008
             | 
            
                -0.30 / -2.63%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                11.10
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2008
             | 
            
                -0.30 / -2.56%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                11.40
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2008
             | 
            
                -0.30 / -2.50%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                11.70
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2008
             | 
            
                -0.30 / -2.44%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                12.00
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2008
             | 
            
                -0.20 / -1.60%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                12.30
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                12.30
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2008
             | 
            
                -0.30 / -2.34%
             |             
            
                12.50
             |           
            
                13.10
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.61
             |                     
            
                12.50
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2008
             | 
            
                -0.30 / -2.29%
             |             
            
                12.80
             |           
            
                12.80
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                12.80
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2008
             | 
            
                -0.40 / -2.96%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                13.10
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2008
             | 
            
                -0.40 / -2.88%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                13.50
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2008
             | 
            
                -0.40 / -2.80%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                13.90
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2008
             | 
            
                -0.40 / -2.72%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                14.30
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2008
             | 
            
                -0.40 / -2.65%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                14.70
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                14.70
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2008
             | 
            
                -0.40 / -2.58%
             |             
            
                15.10
             |           
            
                15.10
             |               
            
                15.10
             |                           
            
                15.10
             | 
            
                15.10
             |                     
            
                15.10
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2008
             | 
            
                -0.40 / -2.52%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                15.50
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2008
             | 
            
                -0.10 / -0.63%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.90
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                15.90
             |                                 
            
                12,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2008
             | 
            
                -0.30 / -1.84%
             |             
            
                16.30
             |           
            
                16.50
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.30
             |                     
            
                16.00
             |                                 
            
                27,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2008
             | 
            
                +0.20 / +1.24%
             |             
            
                15.80
             |           
            
                16.30
             |               
            
                15.70
             |                           
            
                16.30
             | 
            
                16.11
             |                     
            
                16.30
             |                                 
            
                39,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2008
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.20
             |               
            
                15.80
             |                           
            
                16.10
             | 
            
                15.95
             |                     
            
                16.10
             |                                 
            
                34,700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |