| 
                 
                    Closing price on 12/23/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.50 | 
                 
                
                    | High | 
                    3.50 | 
                 
                
                    | Low | 
                    3.10 | 
                     
                
                    | Volume | 
                    39,300 | 
                                 
                
                    | Split-adjusted Price | 
                    2.76 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SD3 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/23/2011
             | 
            
                -0.20 / -6.06%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.30
             |                     
            
                2.76
             |                                 
            
                39,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2011
             | 
            
                -0.20 / -5.71%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                3.30
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                2.94
             |                                 
            
                35,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2011
             | 
            
                -0.10 / -2.78%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                3.11
             |                                 
            
                22,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2011
             | 
            
                -0.20 / -5.26%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.20
             |                                 
            
                37,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2011
             | 
            
                -0.10 / -2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.38
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2011
             | 
            
                +0.10 / +2.63%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.70
             |                     
            
                3.47
             |                                 
            
                23,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2011
             | 
            
                -0.10 / -2.56%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.70
             |                     
            
                3.38
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2011
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.47
             |                                 
            
                31,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.10
             |                     
            
                3.56
             |                                 
            
                18,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/12/2011
             | 
            
                -0.20 / -4.76%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.10
             |                     
            
                3.56
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2011
             | 
            
                -0.10 / -2.27%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.28
             |                     
            
                3.83
             |                                 
            
                18,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                3.91
             |                                 
            
                28,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2011
             | 
            
                -0.10 / -2.22%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                3.91
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2011
             | 
            
                +0.10 / +2.27%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.60
             |                     
            
                4.00
             |                                 
            
                38,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/5/2011
             | 
            
                +0.20 / +4.76%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                3.91
             |                                 
            
                12,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2011
             | 
            
                +0.10 / +2.38%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.20
             |                     
            
                3.83
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                3.74
             |                                 
            
                8,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                3.74
             |                                 
            
                13,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2011
             | 
            
                -0.10 / -2.33%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.30
             |                     
            
                3.74
             |                                 
            
                22,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2011
             | 
            
                +0.20 / +4.88%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                3.83
             |                                 
            
                51,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2011
             | 
            
                -0.10 / -2.38%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.13
             |                     
            
                3.65
             |                                 
            
                32,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2011
             | 
            
                -0.20 / -4.55%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.30
             |                     
            
                3.74
             |                                 
            
                23,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2011
             | 
            
                -0.20 / -4.35%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.50
             |                     
            
                3.91
             |                                 
            
                9,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2011
             | 
            
                -0.10 / -2.13%
             |             
            
                4.40
             |           
            
                4.90
             |               
            
                4.30
             |                           
            
                4.60
             | 
            
                4.40
             |                     
            
                4.09
             |                                 
            
                23,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/21/2011
             | 
            
                -0.10 / -2.08%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.60
             |                     
            
                4.18
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2011
             | 
            
                -0.20 / -4.08%
             |             
            
                4.80
             |           
            
                5.10
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                5.00
             |                     
            
                4.18
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2011
             | 
            
                -0.40 / -7.55%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                5.00
             |                     
            
                4.36
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2011
             | 
            
                +0.20 / +3.92%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                4.90
             |                           
            
                5.30
             | 
            
                5.10
             |                     
            
                4.71
             |                                 
            
                17,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/15/2011
             | 
            
                +0.10 / +2.00%
             |             
            
                4.70
             |           
            
                5.20
             |               
            
                4.70
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                4.54
             |                                 
            
                8,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/14/2011
             | 
            
                -0.30 / -5.66%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                4.45
             |                                 
            
                17,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |