| 
                 
                    Closing price on 5/15/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    26.20 | 
                 
                
                    | High | 
                    26.20 | 
                 
                
                    | Low | 
                    25.20 | 
                     
                
                    | Volume | 
                    9,400 | 
                                 
                
                    | Split-adjusted Price | 
                    4.92 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/15/2009
             | 
            
                -1.00 / -3.72%
             |             
            
                26.20
             |           
            
                26.20
             |               
            
                25.20
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                4.92
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2009
             | 
            
                +0.40 / +1.51%
             |             
            
                26.90
             |           
            
                27.00
             |               
            
                26.90
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                5.11
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2009
             | 
            
                0.00 / 0.00%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                5.04
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2009
             | 
            
                +0.20 / +0.76%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                5.04
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2009
             | 
            
                -0.10 / -0.38%
             |             
            
                26.10
             |           
            
                26.30
             |               
            
                26.10
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                5.00
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2009
             | 
            
                -0.10 / -0.38%
             |             
            
                26.40
             |           
            
                26.40
             |               
            
                24.60
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                5.02
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2009
             | 
            
                -0.70 / -2.57%
             |             
            
                25.40
             |           
            
                26.50
             |               
            
                25.40
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                5.04
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2009
             | 
            
                +0.10 / +0.37%
             |             
            
                27.20
             |           
            
                27.20
             |               
            
                27.20
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                5.17
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2009
             | 
            
                +1.60 / +6.27%
             |             
            
                27.20
             |           
            
                27.20
             |               
            
                27.10
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                5.15
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2009
             | 
            
                +1.50 / +6.25%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                4.85
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2009
             | 
            
                0.00 / 0.00%
             |             
            
                23.30
             |           
            
                24.00
             |               
            
                23.30
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                4.56
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2009
             | 
            
                +0.70 / +3.00%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                4.56
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2009
             | 
            
                -1.70 / -6.80%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                23.30
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                4.43
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2009
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                4.75
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2009
             | 
            
                -1.00 / -3.85%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                4.75
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2009
             | 
            
                +0.50 / +1.96%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                4.94
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2009
             | 
            
                +0.30 / +1.19%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                4.85
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2009
             | 
            
                -1.50 / -5.62%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                4.79
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2009
             | 
            
                0.00 / 0.00%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                26.20
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                5.08
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2009
             | 
            
                -0.50 / -1.84%
             |             
            
                26.00
             |           
            
                26.70
             |               
            
                26.00
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                5.08
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2009
             | 
            
                -2.00 / -6.85%
             |             
            
                27.20
             |           
            
                27.20
             |               
            
                27.20
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                5.17
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2009
             | 
            
                -0.60 / -2.01%
             |             
            
                29.20
             |           
            
                29.20
             |               
            
                29.20
             |                           
            
                29.20
             | 
            
                29.20
             |                     
            
                5.55
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2009
             | 
            
                +2.00 / +7.19%
             |             
            
                29.30
             |           
            
                29.80
             |               
            
                29.30
             |                           
            
                29.80
             | 
            
                29.80
             |                     
            
                5.66
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2009
             | 
            
                +1.40 / +5.30%
             |             
            
                27.50
             |           
            
                28.00
             |               
            
                27.50
             |                           
            
                27.80
             | 
            
                27.80
             |                     
            
                5.28
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2009
             | 
            
                +0.10 / +0.38%
             |             
            
                26.30
             |           
            
                26.80
             |               
            
                26.30
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                5.02
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2009
             | 
            
                -0.40 / -1.50%
             |             
            
                26.30
             |           
            
                26.30
             |               
            
                26.30
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                5.00
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2009
             | 
            
                +1.30 / +5.12%
             |             
            
                24.50
             |           
            
                26.70
             |               
            
                24.50
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                5.08
             |                                 
            
                5,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2009
             | 
            
                +1.60 / +6.72%
             |             
            
                24.70
             |           
            
                25.40
             |               
            
                24.70
             |                           
            
                25.40
             | 
            
                25.40
             |                     
            
                4.83
             |                                 
            
                4,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2009
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                4.52
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2009
             | 
            
                +1.30 / +5.78%
             |             
            
                23.80
             |           
            
                23.80
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                4.52
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |