| 
                 
                    Closing price on 6/29/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    34.00 | 
                 
                
                    | High | 
                    34.20 | 
                 
                
                    | Low | 
                    33.30 | 
                     
                
                    | Volume | 
                    35,200 | 
                                 
                
                    | Split-adjusted Price | 
                    34.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SDB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/29/2010
             | 
            
                +0.30 / +0.89%
             |             
            
                34.00
             |           
            
                34.20
             |               
            
                33.30
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                34.00
             |                                 
            
                35,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2010
             | 
            
                +0.30 / +0.90%
             |             
            
                33.80
             |           
            
                33.80
             |               
            
                32.40
             |                           
            
                33.70
             | 
            
                33.70
             |                     
            
                33.70
             |                                 
            
                26,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2010
             | 
            
                -1.20 / -3.47%
             |             
            
                33.50
             |           
            
                34.50
             |               
            
                33.00
             |                           
            
                33.40
             | 
            
                33.60
             |                     
            
                33.40
             |                                 
            
                26,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2010
             | 
            
                +1.60 / +4.85%
             |             
            
                33.00
             |           
            
                34.60
             |               
            
                33.00
             |                           
            
                34.60
             | 
            
                34.60
             |                     
            
                34.60
             |                                 
            
                82,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2010
             | 
            
                +1.00 / +3.13%
             |             
            
                31.70
             |           
            
                33.00
             |               
            
                31.70
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                33.00
             |                                 
            
                67,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2010
             | 
            
                +0.40 / +1.27%
             |             
            
                31.70
             |           
            
                32.00
             |               
            
                31.10
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                32.00
             |                                 
            
                73,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2010
             | 
            
                +0.30 / +0.96%
             |             
            
                30.70
             |           
            
                32.00
             |               
            
                30.50
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                31.60
             |                                 
            
                35,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2010
             | 
            
                0.00 / 0.00%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                31.30
             |                                 
            
                20,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2010
             | 
            
                +0.30 / +0.97%
             |             
            
                30.60
             |           
            
                31.90
             |               
            
                30.60
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                31.30
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2010
             | 
            
                +0.40 / +1.31%
             |             
            
                31.60
             |           
            
                32.50
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                31.00
             |                                 
            
                34,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2010
             | 
            
                0.00 / 0.00%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                30.30
             |                           
            
                30.60
             | 
            
                30.60
             |                     
            
                30.60
             |                                 
            
                9,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2010
             | 
            
                +0.60 / +2.00%
             |             
            
                30.10
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                30.60
             | 
            
                30.60
             |                     
            
                30.60
             |                                 
            
                23,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2010
             | 
            
                +1.00 / +3.45%
             |             
            
                30.50
             |           
            
                30.80
             |               
            
                29.50
             |                           
            
                30.00
             | 
            
                30.20
             |                     
            
                30.00
             |                                 
            
                19,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2010
             | 
            
                +0.10 / +0.35%
             |             
            
                30.30
             |           
            
                30.30
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                29.00
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2010
             | 
            
                -0.50 / -1.70%
             |             
            
                30.00
             |           
            
                30.20
             |               
            
                28.90
             |                           
            
                28.90
             | 
            
                28.90
             |                     
            
                28.90
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2010
             | 
            
                +0.90 / +3.16%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                28.90
             |                           
            
                29.40
             | 
            
                29.40
             |                     
            
                29.40
             |                                 
            
                7,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2010
             | 
            
                -1.50 / -5.00%
             |             
            
                28.80
             |           
            
                28.80
             |               
            
                28.40
             |                           
            
                28.50
             | 
            
                28.50
             |                     
            
                28.50
             |                                 
            
                40,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2010
             | 
            
                -0.60 / -1.96%
             |             
            
                31.90
             |           
            
                31.90
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.60
             |                     
            
                30.00
             |                                 
            
                20,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2010
             | 
            
                -0.30 / -0.97%
             |             
            
                31.90
             |           
            
                32.20
             |               
            
                30.40
             |                           
            
                30.60
             | 
            
                30.60
             |                     
            
                30.60
             |                                 
            
                12,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2010
             | 
            
                +1.80 / +6.19%
             |             
            
                30.00
             |           
            
                31.10
             |               
            
                29.80
             |                           
            
                30.90
             | 
            
                30.90
             |                     
            
                30.90
             |                                 
            
                21,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2010
             | 
            
                -1.00 / -3.32%
             |             
            
                29.00
             |           
            
                30.30
             |               
            
                28.80
             |                           
            
                29.10
             | 
            
                29.10
             |                     
            
                29.10
             |                                 
            
                18,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2010
             | 
            
                -2.40 / -7.38%
             |             
            
                30.50
             |           
            
                30.80
             |               
            
                30.10
             |                           
            
                30.10
             | 
            
                30.10
             |                     
            
                30.10
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2010
             | 
            
                +2.00 / +6.56%
             |             
            
                32.00
             |           
            
                32.50
             |               
            
                31.20
             |                           
            
                32.50
             | 
            
                32.05
             |                     
            
                32.50
             |                                 
            
                60,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2010
             | 
            
                -0.90 / -2.87%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                30.50
             |                                 
            
                14,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2010
             | 
            
                +2.40 / +8.28%
             |             
            
                30.00
             |           
            
                31.40
             |               
            
                29.40
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                31.40
             |                                 
            
                37,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2010
             | 
            
                -2.00 / -6.45%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                28.80
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                29.00
             |                                 
            
                54,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2010
             | 
            
                -0.30 / -0.96%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                30.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                31.00
             |                                 
            
                22,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2010
             | 
            
                -2.70 / -7.94%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                31.30
             |                           
            
                31.30
             | 
            
                34.00
             |                     
            
                31.30
             |                                 
            
                50,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2010
             | 
            
                +1.70 / +5.26%
             |             
            
                33.50
             |           
            
                34.80
             |               
            
                31.50
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                34.00
             |                                 
            
                36,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2010
             | 
            
                -2.70 / -7.71%
             |             
            
                34.70
             |           
            
                34.70
             |               
            
                32.30
             |                           
            
                32.30
             | 
            
                32.30
             |                     
            
                32.30
             |                                 
            
                49,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |