| 
                 
                    Closing price on 10/14/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    41.50 | 
                 
                
                    | High | 
                    43.20 | 
                 
                
                    | Low | 
                    41.40 | 
                     
                
                    | Volume | 
                    14,500 | 
                                 
                
                    | Split-adjusted Price | 
                    9.86 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/14/2009
             | 
            
                +1.70 / +4.10%
             |             
            
                41.50
             |           
            
                43.20
             |               
            
                41.40
             |                           
            
                43.20
             | 
            
                43.20
             |                     
            
                9.86
             |                                 
            
                14,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2009
             | 
            
                0.00 / 0.00%
             |             
            
                44.20
             |           
            
                44.20
             |               
            
                38.60
             |                           
            
                41.50
             | 
            
                41.50
             |                     
            
                9.47
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2009
             | 
            
                +2.60 / +6.68%
             |             
            
                41.50
             |           
            
                41.50
             |               
            
                41.50
             |                           
            
                41.50
             | 
            
                41.50
             |                     
            
                9.47
             |                                 
            
                14,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2009
             | 
            
                +2.20 / +5.99%
             |             
            
                38.50
             |           
            
                38.90
             |               
            
                36.70
             |                           
            
                38.90
             | 
            
                38.90
             |                     
            
                8.88
             |                                 
            
                22,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2009
             | 
            
                +2.40 / +7.00%
             |             
            
                35.00
             |           
            
                36.70
             |               
            
                35.00
             |                           
            
                36.70
             | 
            
                36.70
             |                     
            
                8.38
             |                                 
            
                12,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2009
             | 
            
                +1.70 / +5.21%
             |             
            
                34.20
             |           
            
                34.30
             |               
            
                34.20
             |                           
            
                34.30
             | 
            
                34.30
             |                     
            
                7.83
             |                                 
            
                10,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2009
             | 
            
                +2.10 / +6.89%
             |             
            
                32.00
             |           
            
                32.60
             |               
            
                32.00
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                7.44
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2009
             | 
            
                -1.90 / -5.86%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                6.96
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2009
             | 
            
                -2.40 / -6.90%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.40
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                7.39
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/1/2009
             | 
            
                +0.20 / +0.58%
             |             
            
                34.80
             |           
            
                34.80
             |               
            
                34.80
             |                           
            
                34.80
             | 
            
                34.80
             |                     
            
                7.94
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/30/2009
             | 
            
                +2.20 / +6.79%
             |             
            
                32.40
             |           
            
                34.60
             |               
            
                32.40
             |                           
            
                34.60
             | 
            
                34.60
             |                     
            
                7.90
             |                                 
            
                13,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2009
             | 
            
                -0.60 / -1.82%
             |             
            
                32.50
             |           
            
                32.60
             |               
            
                32.00
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                7.39
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2009
             | 
            
                -0.10 / -0.30%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                7.53
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2009
             | 
            
                -0.90 / -2.65%
             |             
            
                33.00
             |           
            
                33.10
             |               
            
                33.00
             |                           
            
                33.10
             | 
            
                33.10
             |                     
            
                7.55
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2009
             | 
            
                0.00 / 0.00%
             |             
            
                34.20
             |           
            
                34.20
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                7.76
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2009
             | 
            
                +0.30 / +0.89%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                7.76
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2009
             | 
            
                +0.20 / +0.60%
             |             
            
                33.00
             |           
            
                35.40
             |               
            
                33.00
             |                           
            
                33.70
             | 
            
                33.70
             |                     
            
                7.69
             |                                 
            
                10,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2009
             | 
            
                +1.50 / +4.69%
             |             
            
                32.00
             |           
            
                33.50
             |               
            
                32.00
             |                           
            
                33.50
             | 
            
                33.50
             |                     
            
                7.65
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2009
             | 
            
                +0.30 / +0.95%
             |             
            
                31.20
             |           
            
                32.00
             |               
            
                31.20
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                7.30
             |                                 
            
                2,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2009
             | 
            
                +0.20 / +0.63%
             |             
            
                31.70
             |           
            
                31.70
             |               
            
                31.70
             |                           
            
                31.70
             | 
            
                31.70
             |                     
            
                7.23
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2009
             | 
            
                -0.30 / -0.94%
             |             
            
                31.80
             |           
            
                31.80
             |               
            
                31.50
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                7.19
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2009
             | 
            
                -0.20 / -0.63%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.00
             |                           
            
                31.80
             | 
            
                31.80
             |                     
            
                7.26
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2009
             | 
            
                +0.50 / +1.59%
             |             
            
                32.20
             |           
            
                32.20
             |               
            
                31.90
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                7.30
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2009
             | 
            
                -1.00 / -3.08%
             |             
            
                33.20
             |           
            
                33.20
             |               
            
                31.50
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                7.19
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2009
             | 
            
                +2.00 / +6.56%
             |             
            
                30.50
             |           
            
                32.50
             |               
            
                30.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                7.42
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2009
             | 
            
                -1.00 / -3.17%
             |             
            
                33.90
             |           
            
                33.90
             |               
            
                29.60
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                6.96
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2009
             | 
            
                +1.50 / +5.00%
             |             
            
                32.10
             |           
            
                32.10
             |               
            
                31.50
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                7.19
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2009
             | 
            
                0.00 / 0.00%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                6.85
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2009
             | 
            
                -1.30 / -4.15%
             |             
            
                31.00
             |           
            
                31.70
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                6.85
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2009
             | 
            
                -1.30 / -3.99%
             |             
            
                31.10
             |           
            
                31.30
             |               
            
                31.10
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                7.14
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |