| 
                 
                    Closing price on 1/29/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.30 | 
                 
                
                    | High | 
                    4.30 | 
                 
                
                    | Low | 
                    4.10 | 
                     
                
                    | Volume | 
                    56,860 | 
                                 
                
                    | Split-adjusted Price | 
                    1.95 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/29/2013
             | 
            
                -0.10 / -2.38%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.95
             |                                 
            
                56,860
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                2.00
             |                                 
            
                189,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2013
             | 
            
                +0.20 / +4.88%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                76,320
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2013
             | 
            
                +0.10 / +2.50%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.95
             |                                 
            
                52,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.90
             |                                 
            
                59,590
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2013
             | 
            
                -0.30 / -6.98%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.90
             |                                 
            
                144,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                100,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2013
             | 
            
                -0.10 / -2.27%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                123,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2013
             | 
            
                -0.30 / -6.38%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.09
             |                                 
            
                278,540
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2013
             | 
            
                +0.30 / +6.82%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.40
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                2.24
             |                                 
            
                196,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2013
             | 
            
                +0.20 / +4.76%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.09
             |                                 
            
                265,940
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2013
             | 
            
                -0.10 / -2.33%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                2.00
             |                                 
            
                74,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                99,620
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2013
             | 
            
                +0.20 / +4.88%
             |             
            
                4.00
             |           
            
                4.30
             |               
            
                3.90
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                94,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2013
             | 
            
                -0.20 / -4.65%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.95
             |                                 
            
                422,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                203,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2013
             | 
            
                -0.10 / -2.27%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                2.05
             |                                 
            
                124,550
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2013
             | 
            
                +0.20 / +4.76%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                2.09
             |                                 
            
                264,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2013
             | 
            
                +0.20 / +5.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                2.00
             |                                 
            
                694,050
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2013
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.90
             |                                 
            
                13,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2012
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.86
             |                                 
            
                21,580
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2012
             | 
            
                +0.10 / +2.70%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                1.81
             |                                 
            
                15,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2012
             | 
            
                +0.10 / +2.78%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                1.76
             |                                 
            
                71,220
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2012
             | 
            
                +0.10 / +2.86%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                1.71
             |                                 
            
                146,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2012
             | 
            
                +0.10 / +2.94%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.67
             |                                 
            
                104,160
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.30
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.40
             |                     
            
                1.62
             |                                 
            
                98,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.40
             |                           
            
                3.40
             | 
            
                3.40
             |                     
            
                1.62
             |                                 
            
                87,560
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2012
             | 
            
                -0.10 / -2.86%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.40
             |                           
            
                3.40
             | 
            
                3.40
             |                     
            
                1.62
             |                                 
            
                92,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2012
             | 
            
                -0.10 / -2.78%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.50
             |                     
            
                1.67
             |                                 
            
                25,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                1.71
             |                                 
            
                42,430
             |  
            
                 
             |                                                              
             
    
         
    
    
 |