| 
                 
                    Closing price on 8/11/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    27.60 | 
                 
                
                    | High | 
                    30.00 | 
                 
                
                    | Low | 
                    27.60 | 
                     
                
                    | Volume | 
                    9,200 | 
                                 
                
                    | Split-adjusted Price | 
                    6.82 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/11/2009
             | 
            
                +2.30 / +8.33%
             |             
            
                27.60
             |           
            
                30.00
             |               
            
                27.60
             |                           
            
                29.90
             | 
            
                29.90
             |                     
            
                6.82
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2009
             | 
            
                -1.00 / -3.50%
             |             
            
                28.90
             |           
            
                28.90
             |               
            
                27.60
             |                           
            
                27.60
             | 
            
                27.60
             |                     
            
                6.30
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2009
             | 
            
                +2.30 / +8.75%
             |             
            
                26.80
             |           
            
                28.60
             |               
            
                26.80
             |                           
            
                28.60
             | 
            
                28.60
             |                     
            
                6.53
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2009
             | 
            
                -0.70 / -2.59%
             |             
            
                27.00
             |           
            
                27.50
             |               
            
                26.30
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                6.00
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2009
             | 
            
                -0.90 / -3.23%
             |             
            
                26.10
             |           
            
                27.00
             |               
            
                26.00
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                6.16
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2009
             | 
            
                -2.10 / -7.00%
             |             
            
                27.90
             |           
            
                28.00
             |               
            
                27.90
             |                           
            
                27.90
             | 
            
                27.90
             |                     
            
                6.37
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2009
             | 
            
                +2.00 / +7.14%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                6.85
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2009
             | 
            
                -0.40 / -1.41%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.00
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                6.39
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2009
             | 
            
                +1.30 / +4.80%
             |             
            
                28.40
             |           
            
                28.40
             |               
            
                27.60
             |                           
            
                28.40
             | 
            
                28.40
             |                     
            
                6.48
             |                                 
            
                8,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2009
             | 
            
                +1.60 / +6.27%
             |             
            
                26.00
             |           
            
                27.10
             |               
            
                25.50
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                6.18
             |                                 
            
                7,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2009
             | 
            
                0.00 / 0.00%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                25.00
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                5.82
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2009
             | 
            
                +1.50 / +6.25%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                5.82
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2009
             | 
            
                +1.50 / +6.67%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                5.48
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2009
             | 
            
                +1.40 / +6.64%
             |             
            
                22.50
             |           
            
                22.50
             |               
            
                22.30
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                5.13
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2009
             | 
            
                -1.40 / -6.22%
             |             
            
                21.10
             |           
            
                21.10
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                4.82
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2009
             | 
            
                0.00 / 0.00%
             |             
            
                22.50
             |           
            
                22.50
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                5.13
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2009
             | 
            
                -0.70 / -3.02%
             |             
            
                22.50
             |           
            
                22.70
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                5.13
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2009
             | 
            
                0.00 / 0.00%
             |             
            
                23.20
             |           
            
                23.20
             |               
            
                23.20
             |                           
            
                23.20
             | 
            
                23.20
             |                     
            
                5.29
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2009
             | 
            
                -1.80 / -7.20%
             |             
            
                23.20
             |           
            
                23.20
             |               
            
                23.20
             |                           
            
                23.20
             | 
            
                23.20
             |                     
            
                5.29
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2009
             | 
            
                +0.50 / +2.04%
             |             
            
                22.80
             |           
            
                25.00
             |               
            
                22.80
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                5.71
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2009
             | 
            
                +2.30 / +10.36%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                5.59
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2009
             | 
            
                -1.60 / -6.72%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                22.20
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                5.07
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2009
             | 
            
                -1.70 / -6.67%
             |             
            
                23.80
             |           
            
                23.80
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                5.43
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2009
             | 
            
                +1.20 / +4.94%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                5.82
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2009
             | 
            
                -0.30 / -1.22%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                24.30
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                5.55
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2009
             | 
            
                -0.20 / -0.81%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                5.61
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2009
             | 
            
                +1.40 / +5.98%
             |             
            
                22.50
             |           
            
                24.80
             |               
            
                22.50
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                5.66
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2009
             | 
            
                0.00 / 0.00%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                23.40
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                5.34
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2009
             | 
            
                +1.70 / +7.83%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                23.40
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                5.34
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2009
             | 
            
                -1.10 / -4.82%
             |             
            
                22.00
             |           
            
                22.10
             |               
            
                21.70
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                4.95
             |                                 
            
                4,400
             |  
            
                 
             |                                                              
             
    
         
    
    
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