| 
                 
                    Closing price on 7/28/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    28.10 | 
                 
                
                    | High | 
                    28.20 | 
                 
                
                    | Low | 
                    28.10 | 
                     
                
                    | Volume | 
                    5,000 | 
                                 
                
                    | Split-adjusted Price | 
                    7.81 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/28/2010
             | 
            
                +1.80 / +6.82%
             |             
            
                28.10
             |           
            
                28.20
             |               
            
                28.10
             |                           
            
                28.20
             | 
            
                28.20
             |                     
            
                7.81
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2010
             | 
            
                -1.90 / -6.71%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.40
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                7.31
             |                                 
            
                2,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2010
             | 
            
                0.00 / 0.00%
             |             
            
                28.30
             |           
            
                28.30
             |               
            
                28.30
             |                           
            
                28.30
             | 
            
                28.30
             |                     
            
                7.84
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2010
             | 
            
                -0.10 / -0.35%
             |             
            
                29.20
             |           
            
                29.20
             |               
            
                28.00
             |                           
            
                28.30
             | 
            
                28.30
             |                     
            
                7.84
             |                                 
            
                3,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2010
             | 
            
                +1.40 / +5.19%
             |             
            
                27.00
             |           
            
                28.50
             |               
            
                27.00
             |                           
            
                28.40
             | 
            
                28.40
             |                     
            
                7.87
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2010
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                27.00
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                7.48
             |                                 
            
                14,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2010
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                27.00
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                7.48
             |                                 
            
                11,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2010
             | 
            
                -0.30 / -1.10%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                26.90
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                7.48
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2010
             | 
            
                +1.30 / +5.00%
             |             
            
                26.20
             |           
            
                27.30
             |               
            
                26.20
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                7.56
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2010
             | 
            
                -1.60 / -5.80%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                7.20
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2010
             | 
            
                +1.20 / +4.55%
             |             
            
                26.30
             |           
            
                27.60
             |               
            
                26.30
             |                           
            
                27.60
             | 
            
                27.60
             |                     
            
                7.64
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2010
             | 
            
                +0.40 / +1.54%
             |             
            
                26.00
             |           
            
                26.40
             |               
            
                26.00
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                7.31
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2010
             | 
            
                0.00 / 0.00%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                7.20
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2010
             | 
            
                -0.10 / -0.38%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                7.20
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2010
             | 
            
                0.00 / 0.00%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.00
             |                           
            
                26.10
             | 
            
                26.10
             |                     
            
                7.23
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2010
             | 
            
                +0.70 / +2.76%
             |             
            
                25.60
             |           
            
                26.20
             |               
            
                25.60
             |                           
            
                26.10
             | 
            
                26.10
             |                     
            
                7.23
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2010
             | 
            
                +0.20 / +0.79%
             |             
            
                25.30
             |           
            
                25.40
             |               
            
                25.30
             |                           
            
                25.40
             | 
            
                25.40
             |                     
            
                7.03
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2010
             | 
            
                +0.20 / +0.80%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                6.98
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2010
             | 
            
                -0.50 / -1.96%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                6.92
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2010
             | 
            
                -0.40 / -1.54%
             |             
            
                25.10
             |           
            
                25.50
             |               
            
                25.10
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                7.06
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2010
             | 
            
                -1.80 / -6.50%
             |             
            
                25.90
             |           
            
                25.90
             |               
            
                25.90
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                7.17
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2010
             | 
            
                0.00 / 0.00%
             |             
            
                27.70
             |           
            
                27.70
             |               
            
                27.70
             |                           
            
                27.70
             | 
            
                27.70
             |                     
            
                7.67
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2010
             | 
            
                +1.00 / +3.75%
             |             
            
                27.70
             |           
            
                27.70
             |               
            
                27.70
             |                           
            
                27.70
             | 
            
                27.70
             |                     
            
                7.67
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2010
             | 
            
                -1.20 / -4.30%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                26.70
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                7.39
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2010
             | 
            
                +1.30 / +4.89%
             |             
            
                26.30
             |           
            
                27.90
             |               
            
                26.30
             |                           
            
                27.90
             | 
            
                27.90
             |                     
            
                7.73
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2010
             | 
            
                +0.10 / +0.38%
             |             
            
                26.20
             |           
            
                26.60
             |               
            
                26.20
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                7.37
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2010
             | 
            
                -0.10 / -0.38%
             |             
            
                25.60
             |           
            
                26.50
             |               
            
                25.60
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                7.34
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2010
             | 
            
                +0.10 / +0.38%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.60
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                7.37
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2010
             | 
            
                -1.00 / -3.64%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                7.34
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2010
             | 
            
                -1.00 / -3.51%
             |             
            
                27.00
             |           
            
                28.30
             |               
            
                27.00
             |                           
            
                27.50
             | 
            
                27.50
             |                     
            
                7.62
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
         
    
    
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