| 
                 
                    Closing price on 4/23/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    22.50 | 
                 
                
                    | High | 
                    22.50 | 
                 
                
                    | Low | 
                    22.50 | 
                     
                
                    | Volume | 
                    1,030 | 
                                 
                
                    | Split-adjusted Price | 
                    5.37 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
LSS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/23/2008
             | 
            
                -0.40 / -1.75%
             |             
            
                22.50
             |           
            
                22.50
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                5.37
             |                                 
            
                1,030
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2008
             | 
            
                -0.40 / -1.72%
             |             
            
                22.90
             |           
            
                22.90
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                5.47
             |                                 
            
                4,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2008
             | 
            
                -0.40 / -1.69%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                23.30
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                5.56
             |                                 
            
                15,930
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2008
             | 
            
                -0.40 / -1.66%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                23.70
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                5.66
             |                                 
            
                17,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2008
             | 
            
                +0.40 / +1.69%
             |             
            
                23.30
             |           
            
                24.10
             |               
            
                23.30
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                5.75
             |                                 
            
                56,350
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2008
             | 
            
                -0.40 / -1.66%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                23.70
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                5.66
             |                                 
            
                3,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2008
             | 
            
                -0.40 / -1.63%
             |             
            
                24.10
             |           
            
                24.10
             |               
            
                24.10
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                5.75
             |                                 
            
                4,460
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2008
             | 
            
                -0.50 / -2.00%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                5.85
             |                                 
            
                5,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2008
             | 
            
                +0.30 / +1.21%
             |             
            
                24.40
             |           
            
                25.00
             |               
            
                24.30
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                5.97
             |                                 
            
                45,010
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2008
             | 
            
                +0.40 / +1.65%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.00
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                5.90
             |                                 
            
                100,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2008
             | 
            
                +0.40 / +1.67%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                24.30
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                5.80
             |                                 
            
                32,690
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2008
             | 
            
                +0.20 / +0.84%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                23.90
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                5.71
             |                                 
            
                20,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2008
             | 
            
                +0.20 / +0.85%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                23.70
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                5.66
             |                                 
            
                21,150
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2008
             | 
            
                +0.20 / +0.86%
             |             
            
                23.50
             |           
            
                23.50
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                5.61
             |                                 
            
                32,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2008
             | 
            
                +0.20 / +0.87%
             |             
            
                23.30
             |           
            
                23.30
             |               
            
                23.30
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                5.56
             |                                 
            
                25,010
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2008
             | 
            
                +0.20 / +0.87%
             |             
            
                22.90
             |           
            
                23.10
             |               
            
                22.90
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                5.51
             |                                 
            
                23,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2008
             | 
            
                +0.20 / +0.88%
             |             
            
                22.90
             |           
            
                22.90
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                5.47
             |                                 
            
                15,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2008
             | 
            
                +0.20 / +0.89%
             |             
            
                22.70
             |           
            
                22.70
             |               
            
                22.70
             |                           
            
                22.70
             | 
            
                22.70
             |                     
            
                5.42
             |                                 
            
                5,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2008
             | 
            
                +1.00 / +4.65%
             |             
            
                21.50
             |           
            
                22.50
             |               
            
                21.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                5.37
             |                                 
            
                44,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2008
             | 
            
                -0.90 / -4.02%
             |             
            
                21.60
             |           
            
                21.60
             |               
            
                21.40
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                5.13
             |                                 
            
                32,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2008
             | 
            
                -1.10 / -4.68%
             |             
            
                22.40
             |           
            
                22.50
             |               
            
                22.40
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                5.35
             |                                 
            
                69,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2008
             | 
            
                -1.20 / -4.86%
             |             
            
                23.60
             |           
            
                23.60
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                5.61
             |                                 
            
                48,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2008
             | 
            
                -1.30 / -5.00%
             |             
            
                24.70
             |           
            
                25.10
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                5.90
             |                                 
            
                23,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2008
             | 
            
                0.00 / 0.00%
             |             
            
                26.00
             |           
            
                27.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                6.21
             |                                 
            
                51,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2008
             | 
            
                -1.30 / -4.76%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                6.21
             |                                 
            
                54,890
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2008
             | 
            
                -1.40 / -4.88%
             |             
            
                27.30
             |           
            
                28.20
             |               
            
                27.30
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                6.52
             |                                 
            
                55,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2008
             | 
            
                0.00 / 0.00%
             |             
            
                27.60
             |           
            
                28.70
             |               
            
                27.60
             |                           
            
                28.70
             | 
            
                28.70
             |                     
            
                6.85
             |                                 
            
                9,220
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2008
             | 
            
                +0.40 / +1.41%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                28.70
             |                           
            
                28.70
             | 
            
                28.70
             |                     
            
                6.85
             |                                 
            
                16,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2008
             | 
            
                0.00 / 0.00%
             |             
            
                28.80
             |           
            
                28.80
             |               
            
                28.30
             |                           
            
                28.30
             | 
            
                28.30
             |                     
            
                6.76
             |                                 
            
                24,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2008
             | 
            
                +0.30 / +1.07%
             |             
            
                28.00
             |           
            
                28.70
             |               
            
                28.00
             |                           
            
                28.30
             | 
            
                28.30
             |                     
            
                6.76
             |                                 
            
                97,910
             |  
            
                 
             |                                                              
             
    
         
    
    
 |