| 
                 
                    Closing price on 3/31/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    22.90 | 
                 
                
                    | High | 
                    23.10 | 
                 
                
                    | Low | 
                    22.90 | 
                     
                
                    | Volume | 
                    23,320 | 
                                 
                
                    | Split-adjusted Price | 
                    5.51 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
LSS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2008
             | 
            
                -1.10 / -3.78%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                28.00
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                6.68
             |                                 
            
                67,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2008
             | 
            
                +1.30 / +4.68%
             |             
            
                29.10
             |           
            
                29.10
             |               
            
                29.10
             |                           
            
                29.10
             | 
            
                29.10
             |                     
            
                6.95
             |                                 
            
                35,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2008
             | 
            
                +1.30 / +4.91%
             |             
            
                27.80
             |           
            
                27.80
             |               
            
                27.80
             |                           
            
                27.80
             | 
            
                27.80
             |                     
            
                6.64
             |                                 
            
                65,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2008
             | 
            
                -1.30 / -4.68%
             |             
            
                26.50
             |           
            
                28.00
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                6.33
             |                                 
            
                100,730
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2008
             | 
            
                -1.40 / -4.79%
             |             
            
                27.80
             |           
            
                28.20
             |               
            
                27.80
             |                           
            
                27.80
             | 
            
                27.80
             |                     
            
                6.64
             |                                 
            
                36,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2008
             | 
            
                -1.30 / -4.26%
             |             
            
                30.00
             |           
            
                30.10
             |               
            
                29.20
             |                           
            
                29.20
             | 
            
                29.20
             |                     
            
                6.97
             |                                 
            
                36,150
             |            
            
                 
             |                                       
         
    
        
            | 
                2/29/2008
             | 
            
                -0.90 / -2.87%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                30.50
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                7.28
             |                                 
            
                9,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2008
             | 
            
                +0.40 / +1.29%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                7.50
             |                                 
            
                18,010
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2008
             | 
            
                +1.00 / +3.33%
             |             
            
                30.00
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                7.40
             |                                 
            
                41,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2008
             | 
            
                -1.50 / -4.76%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                7.16
             |                                 
            
                45,660
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2008
             | 
            
                +1.50 / +5.00%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.50
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                7.52
             |                                 
            
                79,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2008
             | 
            
                +0.40 / +1.35%
             |             
            
                28.70
             |           
            
                30.00
             |               
            
                28.60
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                7.16
             |                                 
            
                46,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2008
             | 
            
                -1.50 / -4.82%
             |             
            
                29.60
             |           
            
                29.90
             |               
            
                29.60
             |                           
            
                29.60
             | 
            
                29.60
             |                     
            
                7.07
             |                                 
            
                37,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2008
             | 
            
                -1.60 / -4.89%
             |             
            
                31.10
             |           
            
                32.90
             |               
            
                31.10
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                7.42
             |                                 
            
                16,640
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2008
             | 
            
                -0.30 / -0.91%
             |             
            
                32.00
             |           
            
                33.00
             |               
            
                32.00
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                7.81
             |                                 
            
                30,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |