| 
                 
                    Closing price on 6/3/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.90 | 
                 
                
                    | High | 
                    5.90 | 
                 
                
                    | Low | 
                    5.90 | 
                     
                
                    | Volume | 
                    6,200 | 
                                 
                
                    | Split-adjusted Price | 
                    3.22 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/3/2013
             | 
            
                +0.10 / +1.72%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                3.22
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2013
             | 
            
                +0.50 / +9.43%
             |             
            
                4.80
             |           
            
                5.80
             |               
            
                4.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                3.17
             |                                 
            
                17,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                2.89
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2013
             | 
            
                -0.10 / -1.85%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                2.89
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2013
             | 
            
                +0.30 / +5.88%
             |             
            
                5.00
             |           
            
                5.40
             |               
            
                4.60
             |                           
            
                5.40
             | 
            
                5.40
             |                     
            
                2.95
             |                                 
            
                7,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2013
             | 
            
                +0.20 / +4.08%
             |             
            
                4.50
             |           
            
                5.10
             |               
            
                4.50
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                2.78
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2013
             | 
            
                +0.20 / +4.26%
             |             
            
                4.70
             |           
            
                4.90
             |               
            
                4.50
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                2.67
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2013
             | 
            
                +0.20 / +4.44%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.57
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2013
             | 
            
                +0.10 / +2.27%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                2.46
             |                                 
            
                46,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.40
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.40
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.40
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                -0.10 / -2.22%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.40
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                -0.20 / -4.26%
             |             
            
                4.30
             |           
            
                4.70
             |               
            
                4.30
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                2.46
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.57
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                +0.10 / +2.17%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.30
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.57
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                +0.40 / +9.52%
             |             
            
                4.10
             |           
            
                4.60
             |               
            
                3.80
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                2.51
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                -0.50 / -10.64%
             |             
            
                4.20
             |           
            
                4.90
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                2.29
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                +0.20 / +4.44%
             |             
            
                4.10
             |           
            
                4.70
             |               
            
                4.10
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.57
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                +0.40 / +9.76%
             |             
            
                3.70
             |           
            
                4.50
             |               
            
                3.70
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                2.46
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                -0.40 / -8.89%
             |             
            
                3.70
             |           
            
                4.10
             |               
            
                3.70
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                2.24
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                +0.40 / +9.76%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                3.70
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                2.46
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                -0.40 / -8.89%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                2.24
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                -0.50 / -10.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                2.46
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                5.00
             |               
            
                4.50
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                2.73
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                +0.30 / +6.38%
             |             
            
                4.30
             |           
            
                5.00
             |               
            
                4.30
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                2.73
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                +0.30 / +6.82%
             |             
            
                4.10
             |           
            
                4.80
             |               
            
                4.00
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.57
             |                                 
            
                7,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                +0.40 / +10.00%
             |             
            
                3.90
             |           
            
                4.40
             |               
            
                3.70
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.40
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                +0.30 / +8.11%
             |             
            
                3.70
             |           
            
                4.00
             |               
            
                3.50
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                2.18
             |                                 
            
                6,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                3.40
             |           
            
                3.70
             |               
            
                3.40
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                2.02
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |