| 
                 
                    Closing price on 11/2/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.20 | 
                 
                
                    | High | 
                    7.20 | 
                 
                
                    | Low | 
                    7.20 | 
                     
                
                    | Volume | 
                    100 | 
                                 
                
                    | Split-adjusted Price | 
                    7.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SD1 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/2/2011
             | 
            
                +0.20 / +2.86%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                7.20
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2011
             | 
            
                -0.50 / -6.67%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                7.00
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2011
             | 
            
                -0.50 / -6.25%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                7.50
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                3,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2011
             | 
            
                +0.30 / +3.90%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                8.00
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2011
             | 
            
                +0.30 / +4.05%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                7.70
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2011
             | 
            
                -0.50 / -6.33%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                7.40
             |                                 
            
                24,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2011
             | 
            
                -0.20 / -2.47%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.90
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                8.10
             |                                 
            
                5,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2011
             | 
            
                +0.20 / +2.53%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                8.10
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.90
             |                                 
            
                6,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2011
             | 
            
                -0.40 / -4.82%
             |             
            
                7.80
             |           
            
                8.00
             |               
            
                7.80
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.90
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                8.30
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2011
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                8.30
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2011
             | 
            
                +0.70 / +9.21%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                8.30
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2011
             | 
            
                -0.30 / -3.80%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                7.60
             |                                 
            
                2,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2011
             | 
            
                -0.10 / -1.25%
             |             
            
                7.60
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.90
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2011
             | 
            
                -0.20 / -2.44%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                7.95
             |                     
            
                8.00
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2011
             | 
            
                +0.20 / +2.50%
             |             
            
                8.20
             |           
            
                8.30
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                8.20
             |                                 
            
                3,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |