| 
                 
                    Closing price on 7/29/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.00 | 
                 
                
                    | High | 
                    6.00 | 
                 
                
                    | Low | 
                    5.90 | 
                     
                
                    | Volume | 
                    86,600 | 
                                 
                
                    | Split-adjusted Price | 
                    5.25 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SD3 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/29/2011
             | 
            
                -0.10 / -1.67%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                6.00
             |                     
            
                5.25
             |                                 
            
                86,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2011
             | 
            
                0.00 / 0.00%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.34
             |                                 
            
                26,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2011
             | 
            
                -0.10 / -1.64%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.34
             |                                 
            
                38,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2011
             | 
            
                +0.10 / +1.67%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                5.43
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2011
             | 
            
                -0.30 / -4.76%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.10
             |                     
            
                5.34
             |                                 
            
                28,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2011
             | 
            
                -0.10 / -1.54%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.35
             |                     
            
                5.69
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2011
             | 
            
                -0.20 / -2.99%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.78
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2011
             | 
            
                +0.60 / +9.84%
             |             
            
                6.30
             |           
            
                6.70
             |               
            
                6.20
             |                           
            
                6.70
             | 
            
                6.50
             |                     
            
                5.96
             |                                 
            
                37,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2011
             | 
            
                -0.40 / -6.15%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.30
             |                     
            
                5.43
             |                                 
            
                39,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2011
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.40
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.78
             |                                 
            
                17,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2011
             | 
            
                +0.10 / +1.39%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.30
             | 
            
                7.20
             |                     
            
                5.78
             |                                 
            
                29,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2011
             | 
            
                +0.10 / +1.41%
             |             
            
                7.10
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                5.70
             |                                 
            
                30,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2011
             | 
            
                -0.20 / -2.74%
             |             
            
                7.20
             |           
            
                7.40
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.20
             |                     
            
                5.62
             |                                 
            
                15,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2011
             | 
            
                +0.30 / +4.29%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                6.90
             |                           
            
                7.30
             | 
            
                7.20
             |                     
            
                5.78
             |                                 
            
                41,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2011
             | 
            
                -0.20 / -2.78%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.54
             |                                 
            
                21,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2011
             | 
            
                -0.10 / -1.37%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                5.70
             |                                 
            
                23,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2011
             | 
            
                +0.20 / +2.82%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.30
             | 
            
                7.20
             |                     
            
                5.78
             |                                 
            
                37,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2011
             | 
            
                -0.20 / -2.74%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.62
             |                                 
            
                36,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2011
             | 
            
                +0.40 / +5.80%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.20
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.78
             |                                 
            
                98,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                5.47
             |                                 
            
                76,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2011
             | 
            
                -0.40 / -5.48%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.98
             |                     
            
                5.47
             |                                 
            
                51,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2011
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.78
             |                                 
            
                25,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2011
             | 
            
                +0.20 / +2.82%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.10
             |                           
            
                7.30
             | 
            
                7.20
             |                     
            
                5.78
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2011
             | 
            
                -0.40 / -5.33%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.30
             |                     
            
                5.62
             |                                 
            
                27,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2011
             | 
            
                -0.10 / -1.32%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.10
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.94
             |                                 
            
                19,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2011
             | 
            
                +0.10 / +1.33%
             |             
            
                7.60
             |           
            
                7.70
             |               
            
                7.40
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                6.02
             |                                 
            
                10,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2011
             | 
            
                -0.30 / -3.85%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.60
             |                     
            
                5.94
             |                                 
            
                18,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2011
             | 
            
                -0.20 / -2.50%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.90
             |                     
            
                6.18
             |                                 
            
                47,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2011
             | 
            
                +0.50 / +6.67%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.50
             |                           
            
                8.00
             | 
            
                7.80
             |                     
            
                6.34
             |                                 
            
                61,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2011
             | 
            
                -0.30 / -3.85%
             |             
            
                7.40
             |           
            
                7.80
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.94
             |                                 
            
                67,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |