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                    Closing price on 1/15/2013
                 |  |  
    
        |           
                
                    | Open | 22.70 |  
                    | High | 22.70 |  
                    | Low | 22.00 |  
                    | Volume | 4,020 |  
                    | Split-adjusted Price | 9.32 |  
                
             | 
 |  BTT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/15/2013 | -0.20 / -0.90% | 22.70 | 22.70 | 22.00 | 22.00 | 22.00 | 9.32 | 4,020 |   |  
            | 1/14/2013 | -0.60 / -2.63% | 22.50 | 22.60 | 22.20 | 22.20 | 22.20 | 9.41 | 2,330 |   |  			
            | 1/11/2013 | +0.20 / +0.88% | 22.90 | 23.10 | 22.40 | 22.80 | 22.80 | 9.32 | 16,530 |   |  
            | 1/10/2013 | +0.50 / +2.26% | 22.40 | 23.00 | 22.20 | 22.60 | 22.60 | 9.24 | 77,301 |   |  			
            | 1/9/2013 | -0.90 / -3.91% | 22.50 | 23.00 | 22.10 | 22.10 | 22.10 | 9.04 | 8,480 |   |  
            | 1/8/2013 | +0.60 / +2.68% | 23.00 | 23.00 | 23.00 | 23.00 | 23.00 | 9.41 | 10 |   |  			
            | 1/7/2013 | +0.90 / +4.19% | 21.50 | 22.40 | 21.50 | 22.40 | 22.40 | 9.16 | 2,040 |   |  
            | 1/4/2013 | +1.00 / +4.88% | 21.00 | 21.50 | 21.00 | 21.50 | 21.50 | 8.79 | 310 |   |  			
            | 1/3/2013 | -0.70 / -3.30% | 22.00 | 22.10 | 20.50 | 20.50 | 20.50 | 8.38 | 6,520 |   |  
            | 1/2/2013 | 0.00 / 0.00% | 21.20 | 21.20 | 21.20 | 21.20 | 21.20 | 8.67 | 0 |   |  			
            | 12/28/2012 | +0.80 / +3.92% | 21.00 | 21.20 | 20.20 | 21.20 | 21.20 | 8.67 | 1,310 |   |  
            | 12/27/2012 | -0.30 / -1.45% | 20.70 | 21.70 | 20.30 | 20.40 | 20.40 | 8.34 | 4,460 |   |  			
            | 12/26/2012 | +0.90 / +4.55% | 20.60 | 20.70 | 19.90 | 20.70 | 20.70 | 8.46 | 3,310 |   |  
            | 12/25/2012 | 0.00 / 0.00% | 19.80 | 19.80 | 19.80 | 19.80 | 19.80 | 8.10 | 30 |   |  			
            | 12/24/2012 | -0.20 / -1.00% | 20.50 | 20.50 | 19.80 | 19.80 | 19.80 | 8.10 | 320 |   |  
            | 12/21/2012 | +0.70 / +3.63% | 19.80 | 20.20 | 19.80 | 20.00 | 20.00 | 8.18 | 1,200 |   |  			
            | 12/20/2012 | -0.40 / -2.03% | 19.30 | 19.30 | 19.30 | 19.30 | 19.30 | 7.89 | 50 |   |  
            | 12/19/2012 | -0.30 / -1.50% | 19.60 | 20.50 | 19.60 | 19.70 | 19.70 | 8.06 | 750 |   |  			
            | 12/18/2012 | +0.20 / +1.01% | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 8.18 | 1,010 |   |  
            | 12/17/2012 | 0.00 / 0.00% | 19.80 | 19.80 | 19.80 | 19.80 | 19.80 | 8.10 | 0 |   |  			
            | 12/14/2012 | +0.40 / +2.06% | 20.00 | 20.30 | 19.60 | 19.80 | 19.80 | 8.10 | 1,410 |   |  
            | 12/13/2012 | -0.90 / -4.43% | 19.30 | 19.40 | 19.30 | 19.40 | 19.40 | 7.93 | 510 |   |  			
            | 12/12/2012 | -1.00 / -4.69% | 20.30 | 21.30 | 20.30 | 20.30 | 20.30 | 8.30 | 3,040 |   |  
            | 12/11/2012 | 0.00 / 0.00% | 21.30 | 21.30 | 20.30 | 21.30 | 21.30 | 8.71 | 120 |   |  			
            | 12/10/2012 | 0.00 / 0.00% | 20.30 | 21.30 | 20.30 | 21.30 | 21.30 | 8.71 | 2,520 |   |  
            | 12/7/2012 | 0.00 / 0.00% | 20.30 | 21.30 | 20.30 | 21.30 | 21.30 | 8.71 | 20 |   |  			
            | 12/6/2012 | 0.00 / 0.00% | 20.40 | 21.30 | 20.40 | 21.30 | 21.30 | 8.71 | 20 |   |  
            | 12/5/2012 | 0.00 / 0.00% | 21.30 | 21.30 | 21.20 | 21.30 | 21.30 | 8.71 | 300 |   |  			
            | 12/4/2012 | 0.00 / 0.00% | 20.40 | 21.30 | 20.30 | 21.30 | 21.30 | 8.71 | 2,530 |   |  
            | 12/3/2012 | -0.20 / -0.93% | 20.50 | 21.30 | 20.50 | 21.30 | 21.30 | 8.71 | 20 |   |  |