| 
                 
                    Closing price on 10/9/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.80 | 
                 
                
                    | High | 
                    11.90 | 
                 
                
                    | Low | 
                    10.50 | 
                     
                
                    | Volume | 
                    42,000 | 
                                 
                
                    | Split-adjusted Price | 
                    11.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/9/2008
             | 
            
                +0.20 / +1.74%
             |             
            
                10.80
             |           
            
                11.90
             |               
            
                10.50
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                11.70
             |                                 
            
                42,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2008
             | 
            
                +0.20 / +1.77%
             |             
            
                10.60
             |           
            
                11.80
             |               
            
                10.60
             |                           
            
                11.50
             | 
            
                11.25
             |                     
            
                11.50
             |                                 
            
                19,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2008
             | 
            
                -1.80 / -13.74%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.32
             |                     
            
                11.30
             |                                 
            
                30,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2008
             | 
            
                -1.00 / -7.09%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.29
             |                     
            
                13.10
             |                                 
            
                21,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2008
             | 
            
                -0.40 / -2.76%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                13.70
             |                           
            
                14.10
             | 
            
                13.98
             |                     
            
                14.10
             |                                 
            
                24,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2008
             | 
            
                +0.50 / +3.57%
             |             
            
                14.50
             |           
            
                14.60
             |               
            
                13.70
             |                           
            
                14.50
             | 
            
                14.26
             |                     
            
                14.50
             |                                 
            
                31,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2008
             | 
            
                +0.20 / +1.45%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                13.00
             |                           
            
                14.00
             | 
            
                13.74
             |                     
            
                14.00
             |                                 
            
                45,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2008
             | 
            
                -0.70 / -4.83%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.80
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                13.80
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2008
             | 
            
                -0.50 / -3.33%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.30
             |                           
            
                14.50
             | 
            
                14.82
             |                     
            
                14.50
             |                                 
            
                29,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2008
             | 
            
                +0.10 / +0.67%
             |             
            
                15.40
             |           
            
                15.50
             |               
            
                14.00
             |                           
            
                15.00
             | 
            
                15.10
             |                     
            
                15.00
             |                                 
            
                50,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2008
             | 
            
                +1.40 / +10.37%
             |             
            
                13.50
             |           
            
                14.90
             |               
            
                13.10
             |                           
            
                14.90
             | 
            
                14.51
             |                     
            
                14.90
             |                                 
            
                54,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2008
             | 
            
                -0.90 / -6.25%
             |             
            
                13.50
             |           
            
                14.30
             |               
            
                13.30
             |                           
            
                13.50
             | 
            
                14.02
             |                     
            
                13.50
             |                                 
            
                53,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2008
             | 
            
                0.00 / 0.00%
             |             
            
                14.80
             |           
            
                15.20
             |               
            
                13.40
             |                           
            
                14.40
             | 
            
                14.27
             |                     
            
                14.40
             |                                 
            
                117,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2008
             | 
            
                +0.30 / +2.13%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.40
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                14.40
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2008
             | 
            
                +0.90 / +6.82%
             |             
            
                12.30
             |           
            
                14.10
             |               
            
                12.30
             |                           
            
                14.10
             | 
            
                13.52
             |                     
            
                14.10
             |                                 
            
                42,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2008
             | 
            
                -0.90 / -6.38%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                13.20
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2008
             | 
            
                -0.90 / -6.00%
             |             
            
                14.10
             |           
            
                14.10
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                14.10
             |                                 
            
                5,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2008
             | 
            
                -0.90 / -5.66%
             |             
            
                15.00
             |           
            
                16.20
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.05
             |                     
            
                15.00
             |                                 
            
                23,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2008
             | 
            
                -1.10 / -6.47%
             |             
            
                15.90
             |           
            
                17.40
             |               
            
                15.90
             |                           
            
                15.90
             | 
            
                16.11
             |                     
            
                15.90
             |                                 
            
                139,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2008
             | 
            
                -1.20 / -6.59%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                17.00
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2008
             | 
            
                -0.40 / -2.15%
             |             
            
                18.20
             |           
            
                18.30
             |               
            
                18.20
             |                           
            
                18.20
             | 
            
                18.24
             |                     
            
                18.20
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2008
             | 
            
                -0.90 / -4.62%
             |             
            
                20.50
             |           
            
                20.80
             |               
            
                18.20
             |                           
            
                18.60
             | 
            
                19.50
             |                     
            
                18.60
             |                                 
            
                112,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2008
             | 
            
                +1.00 / +5.41%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                19.40
             |                           
            
                19.50
             | 
            
                19.50
             |                     
            
                19.50
             |                                 
            
                125,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2008
             | 
            
                +1.20 / +6.94%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                17.30
             |                           
            
                18.50
             | 
            
                18.28
             |                     
            
                18.50
             |                                 
            
                258,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2008
             | 
            
                +0.90 / +5.49%
             |             
            
                17.30
             |           
            
                17.30
             |               
            
                17.00
             |                           
            
                17.30
             | 
            
                17.28
             |                     
            
                17.30
             |                                 
            
                138,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2008
             | 
            
                +1.00 / +6.49%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                14.60
             |                           
            
                16.40
             | 
            
                16.25
             |                     
            
                16.40
             |                                 
            
                134,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2008
             | 
            
                +0.70 / +4.76%
             |             
            
                15.40
             |           
            
                15.40
             |               
            
                15.40
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                15.40
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2008
             | 
            
                -0.30 / -2.00%
             |             
            
                14.20
             |           
            
                15.20
             |               
            
                14.20
             |                           
            
                14.70
             | 
            
                14.35
             |                     
            
                14.70
             |                                 
            
                96,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2008
             | 
            
                -1.10 / -6.83%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.16
             |                     
            
                15.00
             |                                 
            
                47,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2008
             | 
            
                +1.00 / +6.62%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                15.60
             |                           
            
                16.10
             | 
            
                16.10
             |                     
            
                16.10
             |                                 
            
                122,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |