| 
                 
                    Closing price on 4/29/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.10 | 
                 
                
                    | High | 
                    13.10 | 
                 
                
                    | Low | 
                    12.60 | 
                     
                
                    | Volume | 
                    409,300 | 
                                 
                
                    | Split-adjusted Price | 
                    5.38 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SCR Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/29/2011
             | 
            
                -0.10 / -0.77%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.60
             |                           
            
                12.90
             | 
            
                12.94
             |                     
            
                5.38
             |                                 
            
                409,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2011
             | 
            
                -0.20 / -1.52%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.90
             |                           
            
                13.00
             | 
            
                13.07
             |                     
            
                5.42
             |                                 
            
                189,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2011
             | 
            
                +0.10 / +0.76%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.20
             | 
            
                13.24
             |                     
            
                5.51
             |                                 
            
                295,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2011
             | 
            
                -0.60 / -4.38%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.31
             |                     
            
                5.46
             |                                 
            
                429,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2011
             | 
            
                +0.30 / +2.24%
             |             
            
                13.20
             |           
            
                13.90
             |               
            
                13.20
             |                           
            
                13.70
             | 
            
                13.67
             |                     
            
                5.71
             |                                 
            
                631,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2011
             | 
            
                -0.30 / -2.19%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.00
             |                           
            
                13.40
             | 
            
                13.09
             |                     
            
                5.59
             |                                 
            
                380,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2011
             | 
            
                -0.40 / -2.84%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                13.60
             |                           
            
                13.70
             | 
            
                13.85
             |                     
            
                5.71
             |                                 
            
                232,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2011
             | 
            
                -0.50 / -3.42%
             |             
            
                14.10
             |           
            
                14.90
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.36
             |                     
            
                5.88
             |                                 
            
                154,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2011
             | 
            
                -0.60 / -3.95%
             |             
            
                15.20
             |           
            
                15.30
             |               
            
                14.50
             |                           
            
                14.60
             | 
            
                14.81
             |                     
            
                6.09
             |                                 
            
                102,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2011
             | 
            
                -0.90 / -5.59%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                15.20
             |                           
            
                15.20
             | 
            
                15.32
             |                     
            
                6.34
             |                                 
            
                427,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2011
             | 
            
                -0.70 / -4.17%
             |             
            
                16.60
             |           
            
                16.90
             |               
            
                16.00
             |                           
            
                16.10
             | 
            
                16.29
             |                     
            
                6.72
             |                                 
            
                296,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2011
             | 
            
                +0.10 / +0.60%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.70
             |                           
            
                16.80
             | 
            
                16.73
             |                     
            
                7.01
             |                                 
            
                162,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2011
             | 
            
                +0.20 / +1.21%
             |             
            
                16.90
             |           
            
                17.20
             |               
            
                16.50
             |                           
            
                16.70
             | 
            
                16.75
             |                     
            
                6.97
             |                                 
            
                116,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2011
             | 
            
                -0.30 / -1.79%
             |             
            
                16.80
             |           
            
                16.90
             |               
            
                16.50
             |                           
            
                16.50
             | 
            
                16.55
             |                     
            
                6.88
             |                                 
            
                301,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2011
             | 
            
                -1.00 / -5.62%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                16.80
             |                           
            
                16.80
             | 
            
                17.01
             |                     
            
                7.01
             |                                 
            
                434,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2011
             | 
            
                +0.50 / +2.89%
             |             
            
                17.30
             |           
            
                17.90
             |               
            
                17.30
             |                           
            
                17.80
             | 
            
                17.55
             |                     
            
                7.42
             |                                 
            
                65,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2011
             | 
            
                +0.30 / +1.76%
             |             
            
                17.00
             |           
            
                17.40
             |               
            
                17.00
             |                           
            
                17.30
             | 
            
                17.17
             |                     
            
                7.22
             |                                 
            
                136,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2011
             | 
            
                -0.60 / -3.41%
             |             
            
                18.00
             |           
            
                18.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.22
             |                     
            
                7.09
             |                                 
            
                148,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2011
             | 
            
                -0.40 / -2.22%
             |             
            
                17.70
             |           
            
                18.10
             |               
            
                17.50
             |                           
            
                17.60
             | 
            
                17.80
             |                     
            
                7.34
             |                                 
            
                144,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2011
             | 
            
                +0.50 / +2.86%
             |             
            
                18.00
             |           
            
                18.10
             |               
            
                17.50
             |                           
            
                18.00
             | 
            
                17.71
             |                     
            
                7.51
             |                                 
            
                201,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2011
             | 
            
                -0.20 / -1.13%
             |             
            
                17.60
             |           
            
                17.70
             |               
            
                17.30
             |                           
            
                17.50
             | 
            
                17.51
             |                     
            
                7.30
             |                                 
            
                89,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2011
             | 
            
                -0.40 / -2.21%
             |             
            
                18.00
             |           
            
                18.20
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.87
             |                     
            
                7.38
             |                                 
            
                104,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2011
             | 
            
                0.00 / 0.00%
             |             
            
                18.10
             |           
            
                18.60
             |               
            
                17.90
             |                           
            
                18.10
             | 
            
                18.15
             |                     
            
                7.55
             |                                 
            
                190,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2011
             | 
            
                -0.80 / -4.23%
             |             
            
                19.40
             |           
            
                19.40
             |               
            
                18.00
             |                           
            
                18.10
             | 
            
                18.36
             |                     
            
                7.55
             |                                 
            
                308,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2011
             | 
            
                -0.60 / -3.08%
             |             
            
                19.80
             |           
            
                19.80
             |               
            
                18.80
             |                           
            
                18.90
             | 
            
                19.07
             |                     
            
                7.88
             |                                 
            
                183,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2011
             | 
            
                +0.40 / +2.09%
             |             
            
                19.30
             |           
            
                19.60
             |               
            
                18.80
             |                           
            
                19.50
             | 
            
                19.22
             |                     
            
                8.13
             |                                 
            
                230,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2011
             | 
            
                -0.50 / -2.55%
             |             
            
                19.90
             |           
            
                20.20
             |               
            
                19.00
             |                           
            
                19.10
             | 
            
                19.35
             |                     
            
                7.97
             |                                 
            
                186,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2011
             | 
            
                -0.10 / -0.51%
             |             
            
                20.60
             |           
            
                20.70
             |               
            
                19.50
             |                           
            
                19.60
             | 
            
                20.28
             |                     
            
                8.17
             |                                 
            
                483,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2011
             | 
            
                +1.00 / +5.35%
             |             
            
                19.20
             |           
            
                19.70
             |               
            
                18.60
             |                           
            
                19.70
             | 
            
                19.41
             |                     
            
                8.22
             |                                 
            
                441,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2011
             | 
            
                +0.10 / +0.54%
             |             
            
                19.10
             |           
            
                19.10
             |               
            
                18.20
             |                           
            
                18.70
             | 
            
                18.47
             |                     
            
                7.80
             |                                 
            
                250,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |