| 
                 
                    Closing price on 5/5/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.10 | 
                 
                
                    | High | 
                    10.10 | 
                 
                
                    | Low | 
                    9.80 | 
                     
                
                    | Volume | 
                    104,800 | 
                                 
                
                    | Split-adjusted Price | 
                    9.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/5/2009
             | 
            
                +0.40 / +4.21%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.80
             |                           
            
                9.90
             | 
            
                10.08
             |                     
            
                9.90
             |                                 
            
                104,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2009
             | 
            
                +0.60 / +6.74%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.50
             |                                 
            
                26,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2009
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                9.00
             |               
            
                8.60
             |                           
            
                8.90
             | 
            
                8.87
             |                     
            
                8.90
             |                                 
            
                21,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2009
             | 
            
                +0.20 / +2.30%
             |             
            
                8.70
             |           
            
                8.90
             |               
            
                8.60
             |                           
            
                8.90
             | 
            
                8.70
             |                     
            
                8.90
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2009
             | 
            
                +0.10 / +1.16%
             |             
            
                8.50
             |           
            
                8.70
             |               
            
                8.50
             |                           
            
                8.70
             | 
            
                8.56
             |                     
            
                8.70
             |                                 
            
                4,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2009
             | 
            
                -0.70 / -7.53%
             |             
            
                8.80
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.60
             | 
            
                8.56
             |                     
            
                8.60
             |                                 
            
                24,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2009
             | 
            
                +0.10 / +1.09%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                8.80
             |                           
            
                9.30
             | 
            
                9.07
             |                     
            
                9.30
             |                                 
            
                12,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2009
             | 
            
                +0.60 / +6.98%
             |             
            
                8.60
             |           
            
                9.20
             |               
            
                8.50
             |                           
            
                9.20
             | 
            
                9.11
             |                     
            
                9.20
             |                                 
            
                20,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2009
             | 
            
                -0.60 / -6.52%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                8.60
             |                                 
            
                11,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2009
             | 
            
                -0.20 / -2.13%
             |             
            
                9.20
             |           
            
                9.20
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                9.20
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2009
             | 
            
                -0.60 / -6.00%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                9.40
             |                           
            
                9.40
             | 
            
                9.84
             |                     
            
                9.40
             |                                 
            
                40,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2009
             | 
            
                -0.10 / -0.99%
             |             
            
                10.20
             |           
            
                10.70
             |               
            
                9.90
             |                           
            
                10.00
             | 
            
                10.13
             |                     
            
                10.00
             |                                 
            
                39,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2009
             | 
            
                -0.40 / -3.81%
             |             
            
                10.50
             |           
            
                10.90
             |               
            
                10.00
             |                           
            
                10.10
             | 
            
                10.35
             |                     
            
                10.10
             |                                 
            
                63,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2009
             | 
            
                +0.60 / +6.06%
             |             
            
                10.50
             |           
            
                10.50
             |               
            
                9.90
             |                           
            
                10.50
             | 
            
                10.34
             |                     
            
                10.50
             |                                 
            
                94,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2009
             | 
            
                +0.60 / +6.45%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.50
             |                           
            
                9.90
             | 
            
                9.89
             |                     
            
                9.90
             |                                 
            
                50,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2009
             | 
            
                +0.40 / +4.49%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                9.20
             |                           
            
                9.30
             | 
            
                9.30
             |                     
            
                9.30
             |                                 
            
                51,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2009
             | 
            
                +0.60 / +7.23%
             |             
            
                8.30
             |           
            
                8.90
             |               
            
                8.30
             |                           
            
                8.90
             | 
            
                8.65
             |                     
            
                8.90
             |                                 
            
                34,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2009
             | 
            
                -0.30 / -3.49%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.20
             |                           
            
                8.30
             | 
            
                8.36
             |                     
            
                8.30
             |                                 
            
                32,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2009
             | 
            
                +0.50 / +6.17%
             |             
            
                8.30
             |           
            
                8.60
             |               
            
                8.20
             |                           
            
                8.60
             | 
            
                8.50
             |                     
            
                8.60
             |                                 
            
                80,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2009
             | 
            
                +0.50 / +6.58%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.06
             |                     
            
                8.10
             |                                 
            
                67,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2009
             | 
            
                -0.10 / -1.30%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.63
             |                     
            
                7.60
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2009
             | 
            
                +0.20 / +2.67%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.65
             |                     
            
                7.70
             |                                 
            
                13,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2009
             | 
            
                0.00 / 0.00%
             |             
            
                7.40
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.39
             |                     
            
                7.50
             |                                 
            
                7,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2009
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.37
             |                     
            
                7.50
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2009
             | 
            
                -0.20 / -2.60%
             |             
            
                7.50
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.59
             |                     
            
                7.50
             |                                 
            
                43,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2009
             | 
            
                +0.10 / +1.32%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.40
             |                           
            
                7.70
             | 
            
                7.53
             |                     
            
                7.70
             |                                 
            
                24,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2009
             | 
            
                -0.10 / -1.30%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.65
             |                     
            
                7.60
             |                                 
            
                13,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2009
             | 
            
                +0.60 / +8.45%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.69
             |                     
            
                7.70
             |                                 
            
                18,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2009
             | 
            
                -0.50 / -6.58%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.21
             |                     
            
                7.10
             |                                 
            
                11,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2009
             | 
            
                -0.50 / -6.17%
             |             
            
                7.50
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.57
             |                     
            
                7.60
             |                                 
            
                26,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |