| 
                 
                    Closing price on 7/9/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    37.50 | 
                 
                
                    | High | 
                    38.00 | 
                 
                
                    | Low | 
                    37.40 | 
                     
                
                    | Volume | 
                    30,300 | 
                                 
                
                    | Split-adjusted Price | 
                    19.98 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/9/2010
             | 
            
                +0.40 / +1.08%
             |             
            
                37.50
             |           
            
                38.00
             |               
            
                37.40
             |                           
            
                37.50
             | 
            
                37.50
             |                     
            
                19.98
             |                                 
            
                30,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2010
             | 
            
                +0.30 / +0.82%
             |             
            
                38.20
             |           
            
                38.20
             |               
            
                37.00
             |                           
            
                37.10
             | 
            
                37.10
             |                     
            
                19.76
             |                                 
            
                46,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2010
             | 
            
                -0.50 / -1.34%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                36.80
             |                           
            
                36.80
             | 
            
                36.80
             |                     
            
                19.60
             |                                 
            
                40,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2010
             | 
            
                -2.00 / -5.09%
             |             
            
                37.50
             |           
            
                38.00
             |               
            
                37.30
             |                           
            
                37.30
             | 
            
                37.30
             |                     
            
                19.87
             |                                 
            
                27,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2010
             | 
            
                +0.70 / +1.81%
             |             
            
                39.50
             |           
            
                39.50
             |               
            
                38.90
             |                           
            
                39.30
             | 
            
                39.30
             |                     
            
                20.94
             |                                 
            
                35,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2010
             | 
            
                0.00 / 0.00%
             |             
            
                39.40
             |           
            
                39.50
             |               
            
                38.30
             |                           
            
                38.60
             | 
            
                38.60
             |                     
            
                20.56
             |                                 
            
                60,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2010
             | 
            
                -5.40 / -12.27%
             |             
            
                39.10
             |           
            
                39.10
             |               
            
                37.50
             |                           
            
                38.60
             | 
            
                38.60
             |                     
            
                20.56
             |                                 
            
                140,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2010
             | 
            
                -1.70 / -3.72%
             |             
            
                45.50
             |           
            
                45.50
             |               
            
                43.50
             |                           
            
                44.00
             | 
            
                44.00
             |                     
            
                19.54
             |                                 
            
                117,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2010
             | 
            
                -0.20 / -0.44%
             |             
            
                46.40
             |           
            
                46.90
             |               
            
                45.50
             |                           
            
                45.70
             | 
            
                45.70
             |                     
            
                20.30
             |                                 
            
                52,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2010
             | 
            
                -0.20 / -0.43%
             |             
            
                46.50
             |           
            
                46.50
             |               
            
                45.50
             |                           
            
                45.90
             | 
            
                45.90
             |                     
            
                20.39
             |                                 
            
                58,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2010
             | 
            
                -1.00 / -2.12%
             |             
            
                46.00
             |           
            
                47.00
             |               
            
                45.60
             |                           
            
                46.10
             | 
            
                46.10
             |                     
            
                20.47
             |                                 
            
                42,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2010
             | 
            
                0.00 / 0.00%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                47.00
             |                           
            
                47.10
             | 
            
                47.10
             |                     
            
                20.92
             |                                 
            
                55,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2010
             | 
            
                +0.60 / +1.29%
             |             
            
                46.50
             |           
            
                47.30
             |               
            
                46.00
             |                           
            
                47.10
             | 
            
                47.10
             |                     
            
                20.92
             |                                 
            
                40,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2010
             | 
            
                -1.30 / -2.72%
             |             
            
                47.90
             |           
            
                47.90
             |               
            
                46.40
             |                           
            
                46.50
             | 
            
                46.50
             |                     
            
                20.65
             |                                 
            
                78,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2010
             | 
            
                +0.50 / +1.06%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                47.20
             |                           
            
                47.80
             | 
            
                47.80
             |                     
            
                21.23
             |                                 
            
                70,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2010
             | 
            
                +1.10 / +2.38%
             |             
            
                49.50
             |           
            
                49.50
             |               
            
                46.00
             |                           
            
                47.30
             | 
            
                47.30
             |                     
            
                21.01
             |                                 
            
                59,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2010
             | 
            
                -2.60 / -5.33%
             |             
            
                48.80
             |           
            
                48.80
             |               
            
                46.10
             |                           
            
                46.20
             | 
            
                46.20
             |                     
            
                20.52
             |                                 
            
                113,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2010
             | 
            
                +2.00 / +4.27%
             |             
            
                48.00
             |           
            
                49.50
             |               
            
                48.00
             |                           
            
                48.80
             | 
            
                48.80
             |                     
            
                21.67
             |                                 
            
                68,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2010
             | 
            
                +1.30 / +2.86%
             |             
            
                46.30
             |           
            
                48.00
             |               
            
                45.70
             |                           
            
                46.80
             | 
            
                46.80
             |                     
            
                20.79
             |                                 
            
                124,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2010
             | 
            
                +0.60 / +1.34%
             |             
            
                45.50
             |           
            
                46.00
             |               
            
                45.00
             |                           
            
                45.50
             | 
            
                45.50
             |                     
            
                20.21
             |                                 
            
                58,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2010
             | 
            
                +0.40 / +0.90%
             |             
            
                45.50
             |           
            
                45.50
             |               
            
                44.30
             |                           
            
                44.90
             | 
            
                44.90
             |                     
            
                19.94
             |                                 
            
                84,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2010
             | 
            
                +1.10 / +2.53%
             |             
            
                43.00
             |           
            
                44.50
             |               
            
                43.00
             |                           
            
                44.50
             | 
            
                44.50
             |                     
            
                19.76
             |                                 
            
                31,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2010
             | 
            
                -0.50 / -1.14%
             |             
            
                45.00
             |           
            
                45.00
             |               
            
                42.80
             |                           
            
                43.40
             | 
            
                43.40
             |                     
            
                19.28
             |                                 
            
                68,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2010
             | 
            
                +1.90 / +4.52%
             |             
            
                42.00
             |           
            
                44.00
             |               
            
                42.00
             |                           
            
                43.90
             | 
            
                43.90
             |                     
            
                19.50
             |                                 
            
                61,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2010
             | 
            
                -3.00 / -6.67%
             |             
            
                43.00
             |           
            
                43.00
             |               
            
                41.80
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                18.65
             |                                 
            
                78,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2010
             | 
            
                +0.40 / +0.90%
             |             
            
                45.00
             |           
            
                45.80
             |               
            
                44.20
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                19.99
             |                                 
            
                56,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2010
             | 
            
                0.00 / 0.00%
             |             
            
                47.00
             |           
            
                47.00
             |               
            
                44.50
             |                           
            
                44.60
             | 
            
                44.60
             |                     
            
                19.81
             |                                 
            
                74,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2010
             | 
            
                +0.30 / +0.68%
             |             
            
                42.50
             |           
            
                45.40
             |               
            
                42.50
             |                           
            
                44.60
             | 
            
                44.60
             |                     
            
                19.81
             |                                 
            
                26,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2010
             | 
            
                -0.70 / -1.56%
             |             
            
                44.00
             |           
            
                47.00
             |               
            
                43.00
             |                           
            
                44.30
             | 
            
                44.30
             |                     
            
                19.67
             |                                 
            
                65,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2010
             | 
            
                -2.20 / -4.66%
             |             
            
                45.20
             |           
            
                47.00
             |               
            
                44.20
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                19.99
             |                                 
            
                44,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |