| 
                 
                    Closing price on 9/23/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    18.00 | 
                 
                
                    | High | 
                    18.00 | 
                 
                
                    | Low | 
                    17.00 | 
                     
                
                    | Volume | 
                    334,700 | 
                                 
                
                    | Split-adjusted Price | 
                    17.40 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/23/2009
             | 
            
                +0.40 / +2.35%
             |             
            
                18.00
             |           
            
                18.00
             |               
            
                17.00
             |                           
            
                17.40
             | 
            
                17.91
             |                     
            
                17.40
             |                                 
            
                334,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2009
             | 
            
                +1.10 / +6.92%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.50
             |                           
            
                17.00
             | 
            
                16.91
             |                     
            
                17.00
             |                                 
            
                465,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2009
             | 
            
                +0.80 / +5.30%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.50
             |                           
            
                15.90
             | 
            
                15.89
             |                     
            
                15.90
             |                                 
            
                199,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2009
             | 
            
                +1.10 / +7.86%
             |             
            
                14.40
             |           
            
                15.10
             |               
            
                14.00
             |                           
            
                15.10
             | 
            
                14.90
             |                     
            
                15.10
             |                                 
            
                497,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2009
             | 
            
                -0.40 / -2.78%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                13.80
             |                           
            
                14.00
             | 
            
                14.16
             |                     
            
                14.00
             |                                 
            
                84,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2009
             | 
            
                -0.70 / -4.64%
             |             
            
                15.40
             |           
            
                15.50
             |               
            
                14.40
             |                           
            
                14.40
             | 
            
                14.83
             |                     
            
                14.40
             |                                 
            
                134,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2009
             | 
            
                +0.50 / +3.42%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.70
             |                           
            
                15.10
             | 
            
                14.97
             |                     
            
                15.10
             |                                 
            
                430,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2009
             | 
            
                +0.70 / +5.04%
             |             
            
                13.70
             |           
            
                14.60
             |               
            
                13.70
             |                           
            
                14.60
             | 
            
                14.52
             |                     
            
                14.60
             |                                 
            
                562,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2009
             | 
            
                +0.40 / +2.96%
             |             
            
                13.40
             |           
            
                14.00
             |               
            
                13.40
             |                           
            
                13.90
             | 
            
                13.71
             |                     
            
                13.90
             |                                 
            
                123,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2009
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.50
             | 
            
                13.31
             |                     
            
                13.50
             |                                 
            
                85,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2009
             | 
            
                0.00 / 0.00%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.10
             |                           
            
                13.50
             | 
            
                13.25
             |                     
            
                13.50
             |                                 
            
                64,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2009
             | 
            
                +0.20 / +1.50%
             |             
            
                13.40
             |           
            
                13.70
             |               
            
                12.80
             |                           
            
                13.50
             | 
            
                13.36
             |                     
            
                13.50
             |                                 
            
                112,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2009
             | 
            
                -0.70 / -5.00%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.37
             |                     
            
                13.30
             |                                 
            
                78,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2009
             | 
            
                -0.40 / -2.78%
             |             
            
                14.00
             |           
            
                14.70
             |               
            
                13.80
             |                           
            
                14.00
             | 
            
                14.22
             |                     
            
                14.00
             |                                 
            
                312,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2009
             | 
            
                +1.00 / +7.46%
             |             
            
                13.70
             |           
            
                14.50
             |               
            
                12.70
             |                           
            
                14.40
             | 
            
                13.79
             |                     
            
                14.40
             |                                 
            
                477,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2009
             | 
            
                +0.30 / +2.29%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.30
             |                           
            
                13.40
             | 
            
                13.58
             |                     
            
                13.40
             |                                 
            
                204,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2009
             | 
            
                +0.70 / +5.65%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.70
             |                           
            
                13.10
             | 
            
                13.07
             |                     
            
                13.10
             |                                 
            
                237,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2009
             | 
            
                +0.80 / +6.90%
             |             
            
                11.70
             |           
            
                12.40
             |               
            
                11.70
             |                           
            
                12.40
             | 
            
                12.33
             |                     
            
                12.40
             |                                 
            
                337,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2009
             | 
            
                0.00 / 0.00%
             |             
            
                11.60
             |           
            
                11.70
             |               
            
                11.40
             |                           
            
                11.60
             | 
            
                11.57
             |                     
            
                11.60
             |                                 
            
                39,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2009
             | 
            
                -0.10 / -0.85%
             |             
            
                11.60
             |           
            
                11.70
             |               
            
                11.40
             |                           
            
                11.60
             | 
            
                11.51
             |                     
            
                11.60
             |                                 
            
                20,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2009
             | 
            
                +0.20 / +1.74%
             |             
            
                11.50
             |           
            
                11.70
             |               
            
                11.20
             |                           
            
                11.70
             | 
            
                11.54
             |                     
            
                11.70
             |                                 
            
                35,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2009
             | 
            
                -0.10 / -0.86%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.40
             |                           
            
                11.50
             | 
            
                11.55
             |                     
            
                11.50
             |                                 
            
                39,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2009
             | 
            
                0.00 / 0.00%
             |             
            
                11.60
             |           
            
                12.00
             |               
            
                11.40
             |                           
            
                11.60
             | 
            
                11.70
             |                     
            
                11.60
             |                                 
            
                97,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2009
             | 
            
                -0.10 / -0.85%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.50
             |                           
            
                11.60
             | 
            
                11.62
             |                     
            
                11.60
             |                                 
            
                33,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2009
             | 
            
                +0.40 / +3.54%
             |             
            
                11.50
             |           
            
                11.70
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.60
             |                     
            
                11.70
             |                                 
            
                56,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2009
             | 
            
                -0.20 / -1.74%
             |             
            
                11.00
             |           
            
                11.60
             |               
            
                11.00
             |                           
            
                11.30
             | 
            
                11.38
             |                     
            
                11.30
             |                                 
            
                57,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2009
             | 
            
                -0.20 / -1.71%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.30
             |                           
            
                11.50
             | 
            
                11.55
             |                     
            
                11.50
             |                                 
            
                43,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2009
             | 
            
                -0.10 / -0.85%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.66
             |                     
            
                11.70
             |                                 
            
                29,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2009
             | 
            
                -0.60 / -4.84%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                12.12
             |                     
            
                11.80
             |                                 
            
                37,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2009
             | 
            
                -0.40 / -3.13%
             |             
            
                12.40
             |           
            
                12.40
             |               
            
                12.40
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                12.40
             |                                 
            
                95,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |