| 
                 
                    Closing price on 3/19/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    25.00 | 
                 
                
                    | High | 
                    25.00 | 
                 
                
                    | Low | 
                    24.90 | 
                     
                
                    | Volume | 
                    200 | 
                                 
                
                    | Split-adjusted Price | 
                    5.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SRA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/19/2008
             | 
            
                +1.50 / +6.41%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                5.80
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2008
             | 
            
                -2.20 / -8.59%
             |             
            
                23.40
             |           
            
                24.00
             |               
            
                23.40
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                5.45
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2008
             | 
            
                -2.30 / -8.24%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                25.50
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                5.96
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2008
             | 
            
                -0.20 / -0.71%
             |             
            
                28.00
             |           
            
                28.30
             |               
            
                27.90
             |                           
            
                27.90
             | 
            
                27.90
             |                     
            
                6.50
             |                                 
            
                3,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2008
             | 
            
                +1.00 / +3.69%
             |             
            
                28.00
             |           
            
                28.50
             |               
            
                27.50
             |                           
            
                28.10
             | 
            
                28.10
             |                     
            
                6.55
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2008
             | 
            
                +1.30 / +5.04%
             |             
            
                26.50
             |           
            
                29.30
             |               
            
                26.50
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                6.31
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2008
             | 
            
                -2.50 / -8.83%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                25.80
             |                           
            
                25.80
             | 
            
                25.80
             |                     
            
                6.01
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2008
             | 
            
                +2.50 / +9.69%
             |             
            
                28.30
             |           
            
                28.30
             |               
            
                28.30
             |                           
            
                28.30
             | 
            
                28.30
             |                     
            
                6.59
             |                                 
            
                21,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2008
             | 
            
                +2.30 / +9.79%
             |             
            
                25.80
             |           
            
                25.80
             |               
            
                25.80
             |                           
            
                25.80
             | 
            
                25.80
             |                     
            
                6.01
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2008
             | 
            
                +2.10 / +9.81%
             |             
            
                23.50
             |           
            
                23.50
             |               
            
                23.50
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                5.47
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2008
             | 
            
                -2.30 / -9.70%
             |             
            
                21.50
             |           
            
                22.50
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                4.99
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2008
             | 
            
                -2.30 / -8.85%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                23.70
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                5.52
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2008
             | 
            
                -2.80 / -9.72%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                6.06
             |                                 
            
                2,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/29/2008
             | 
            
                -0.20 / -0.69%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.50
             |                           
            
                28.80
             | 
            
                28.80
             |                     
            
                6.71
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2008
             | 
            
                -0.70 / -2.36%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                6.76
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2008
             | 
            
                0.00 / 0.00%
             |             
            
                30.00
             |           
            
                32.60
             |               
            
                29.70
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                6.92
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2008
             | 
            
                -3.30 / -10.00%
             |             
            
                29.70
             |           
            
                29.70
             |               
            
                29.70
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                6.92
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2008
             | 
            
                +2.20 / +7.14%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                32.80
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                7.69
             |                                 
            
                7,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2008
             | 
            
                -3.40 / -9.94%
             |             
            
                30.80
             |           
            
                30.80
             |               
            
                30.80
             |                           
            
                30.80
             | 
            
                30.80
             |                     
            
                7.17
             |                                 
            
                9,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2008
             | 
            
                -2.80 / -7.57%
             |             
            
                34.20
             |           
            
                34.20
             |               
            
                34.20
             |                           
            
                34.20
             | 
            
                34.20
             |                     
            
                7.97
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2008
             | 
            
                -3.00 / -7.50%
             |             
            
                39.00
             |           
            
                41.00
             |               
            
                37.00
             |                           
            
                37.00
             | 
            
                37.00
             |                     
            
                8.62
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2008
             | 
            
                -1.30 / -3.15%
             |             
            
                40.00
             |           
            
                40.30
             |               
            
                40.00
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                9.32
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2008
             | 
            
                -4.60 / -10.02%
             |             
            
                41.50
             |           
            
                41.50
             |               
            
                41.30
             |                           
            
                41.30
             | 
            
                41.30
             |                     
            
                9.62
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2008
             | 
            
                0.00 / 0.00%
             |             
            
                45.90
             |           
            
                45.90
             |               
            
                45.90
             |                           
            
                45.90
             | 
            
                45.90
             |                     
            
                10.69
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2008
             | 
            
                +0.90 / +2.00%
             |             
            
                45.50
             |           
            
                45.90
             |               
            
                45.50
             |                           
            
                45.90
             | 
            
                45.90
             |                     
            
                10.69
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2008
             | 
            
                +1.00 / +2.27%
             |             
            
                45.80
             |           
            
                45.80
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                45.00
             |                     
            
                10.48
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2008
             | 
            
                -2.50 / -5.38%
             |             
            
                44.00
             |           
            
                44.20
             |               
            
                44.00
             |                           
            
                44.00
             | 
            
                44.00
             |                     
            
                10.25
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2008
             | 
            
                -1.50 / -3.13%
             |             
            
                47.00
             |           
            
                47.50
             |               
            
                46.00
             |                           
            
                46.50
             | 
            
                46.50
             |                     
            
                10.83
             |                                 
            
                11,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2008
             | 
            
                +2.80 / +6.19%
             |             
            
                47.00
             |           
            
                48.50
             |               
            
                45.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                11.18
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2008
             | 
            
                +3.20 / +7.62%
             |             
            
                44.10
             |           
            
                45.20
             |               
            
                44.10
             |                           
            
                45.20
             | 
            
                45.20
             |                     
            
                10.53
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |