| 
                 
                    Closing price on 2/19/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.00 | 
                 
                
                    | High | 
                    4.00 | 
                 
                
                    | Low | 
                    4.00 | 
                     
                
                    | Volume | 
                    0 | 
                                 
                
                    | Split-adjusted Price | 
                    2.18 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                2.18
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                2.18
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2013
             | 
            
                +0.20 / +5.26%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                2.18
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2013
             | 
            
                +0.60 / +18.75%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                2.07
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2013
             | 
            
                -0.30 / -8.57%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                1.75
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.91
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.91
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.91
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2013
             | 
            
                +0.20 / +6.06%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.91
             |                                 
            
                3,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2013
             | 
            
                +0.10 / +3.13%
             |             
            
                3.30
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                1.80
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2013
             | 
            
                +0.10 / +3.23%
             |             
            
                3.20
             |           
            
                3.40
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                1.75
             |                                 
            
                5,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2013
             | 
            
                +0.20 / +6.90%
             |             
            
                2.80
             |           
            
                3.10
             |               
            
                2.80
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2013
             | 
            
                +0.10 / +3.57%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                1.58
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                1.53
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                1.53
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2013
             | 
            
                -0.30 / -9.68%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                1.53
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                8,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                23,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2013
             | 
            
                +0.10 / +3.33%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                7,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2013
             | 
            
                -0.10 / -3.23%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.00
             |                           
            
                3.00
             | 
            
                3.00
             |                     
            
                1.64
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2013
             | 
            
                +0.20 / +6.90%
             |             
            
                2.80
             |           
            
                3.10
             |               
            
                2.80
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                10,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2013
             | 
            
                -0.20 / -6.45%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                1.58
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2013
             | 
            
                -0.10 / -3.13%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                1.69
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                1.75
             |                                 
            
                3,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2013
             | 
            
                +0.30 / +10.34%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                1.75
             |                                 
            
                13,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                3.10
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                1.58
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2013
             | 
            
                +0.10 / +3.57%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                1.58
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2013
             | 
            
                +0.10 / +3.70%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                1.53
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |