| 
                 
                    Closing price on 5/4/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.20 | 
                 
                
                    | High | 
                    12.50 | 
                 
                
                    | Low | 
                    12.20 | 
                     
                
                    | Volume | 
                    98,500 | 
                                 
                
                    | Split-adjusted Price | 
                    8.44 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BTS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/4/2010
             | 
            
                +0.20 / +1.64%
             |             
            
                12.20
             |           
            
                12.50
             |               
            
                12.20
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                8.44
             |                                 
            
                98,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2010
             | 
            
                +0.10 / +0.83%
             |             
            
                12.10
             |           
            
                12.20
             |               
            
                12.00
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                8.30
             |                                 
            
                61,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2010
             | 
            
                +0.30 / +2.54%
             |             
            
                11.90
             |           
            
                12.20
             |               
            
                11.90
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                44,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2010
             | 
            
                0.00 / 0.00%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                62,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2010
             | 
            
                -0.30 / -2.48%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                137,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2010
             | 
            
                -0.10 / -0.82%
             |             
            
                12.20
             |           
            
                12.40
             |               
            
                12.10
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                46,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2010
             | 
            
                +0.10 / +0.83%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                12.00
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                8.30
             |                                 
            
                48,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2010
             | 
            
                -0.10 / -0.82%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                49,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2010
             | 
            
                +0.10 / +0.83%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.00
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                8.30
             |                                 
            
                37,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2010
             | 
            
                0.00 / 0.00%
             |             
            
                12.10
             |           
            
                12.20
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                51,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2010
             | 
            
                0.00 / 0.00%
             |             
            
                12.10
             |           
            
                12.30
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                83,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2010
             | 
            
                -0.10 / -0.82%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.80
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                48,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2010
             | 
            
                -0.40 / -3.17%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.10
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                8.30
             |                                 
            
                39,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2010
             | 
            
                0.00 / 0.00%
             |             
            
                12.50
             |           
            
                13.00
             |               
            
                12.40
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                8.58
             |                                 
            
                33,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2010
             | 
            
                -0.20 / -1.56%
             |             
            
                12.80
             |           
            
                13.30
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                8.58
             |                                 
            
                74,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2010
             | 
            
                +0.80 / +6.67%
             |             
            
                12.00
             |           
            
                12.80
             |               
            
                12.00
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                8.71
             |                                 
            
                294,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2010
             | 
            
                0.00 / 0.00%
             |             
            
                11.90
             |           
            
                12.00
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                8.17
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2010
             | 
            
                +0.20 / +1.69%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                8.17
             |                                 
            
                46,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2010
             | 
            
                -0.10 / -0.84%
             |             
            
                11.80
             |           
            
                12.00
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                22,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2010
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                11.90
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                8.10
             |                                 
            
                21,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2010
             | 
            
                +0.10 / +0.85%
             |             
            
                11.90
             |           
            
                11.90
             |               
            
                11.60
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                8.10
             |                                 
            
                20,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2010
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                12.00
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                21,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2010
             | 
            
                -0.10 / -0.84%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                11.70
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                34,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2010
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.90
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                8.10
             |                                 
            
                28,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2010
             | 
            
                +0.10 / +0.85%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                8.10
             |                                 
            
                16,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2010
             | 
            
                -0.30 / -2.48%
             |             
            
                11.90
             |           
            
                12.00
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                8.03
             |                                 
            
                16,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2010
             | 
            
                +0.10 / +0.83%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                11.80
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                28,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2010
             | 
            
                -0.10 / -0.83%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                8.17
             |                                 
            
                71,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2010
             | 
            
                +0.10 / +0.83%
             |             
            
                12.10
             |           
            
                12.30
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                8.24
             |                                 
            
                27,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2010
             | 
            
                -0.40 / -3.23%
             |             
            
                12.40
             |           
            
                12.40
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                8.17
             |                                 
            
                87,600
             |  
            
                 
             |                                                              
             
    
         
    
    
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