| 
                 
                    Closing price on 5/30/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.80 | 
                 
                
                    | High | 
                    24.80 | 
                 
                
                    | Low | 
                    24.80 | 
                     
                
                    | Volume | 
                    0 | 
                                 
                
                    | Split-adjusted Price | 
                    10.85 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
BTT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                10.85
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                10.85
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2013
             | 
            
                -1.20 / -4.62%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                10.85
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2013
             | 
            
                +1.00 / +4.00%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                11.38
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                25.00
             |               
            
                24.50
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                410
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                1,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                25.00
             |               
            
                24.80
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                1,990
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                -0.30 / -1.19%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                +0.30 / +1.20%
             |             
            
                25.10
             |           
            
                25.30
             |               
            
                25.10
             |                           
            
                25.30
             | 
            
                25.30
             |                     
            
                11.07
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                -1.00 / -3.85%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                10.94
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                +1.50 / +6.12%
             |             
            
                24.30
             |           
            
                26.00
             |               
            
                24.20
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                11.38
             |                                 
            
                1,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                +0.20 / +0.82%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                10.72
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                24.30
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                10.63
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                -0.20 / -0.82%
             |             
            
                24.10
             |           
            
                24.30
             |               
            
                24.10
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                10.63
             |                                 
            
                1,020
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                10.72
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                -0.30 / -1.21%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                10.72
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                -0.10 / -0.40%
             |             
            
                24.80
             |           
            
                24.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                10.85
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                10.89
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                10.89
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                10.89
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                10.89
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                -0.30 / -1.19%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                10.89
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                11.03
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -0.30 / -1.18%
             |             
            
                25.30
             |           
            
                25.30
             |               
            
                25.10
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                11.03
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.20
             |           
            
                25.50
             |               
            
                25.20
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                10.81
             |                                 
            
                4,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.40
             |           
            
                25.50
             |               
            
                25.40
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                10.81
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                25.30
             |           
            
                25.50
             |               
            
                25.30
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                10.81
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |