| 
    
        
            | 
                    Closing price on 4/12/2010
                 |  |  
    
        |           
                
                    | Open | 12.50 |  
                    | High | 13.00 |  
                    | Low | 12.40 |  
                    | Volume | 33,700 |  
                    | Split-adjusted Price | 8.58 |  
                
             | 
 |  BTS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 3/18/2010 | +0.10 / +0.81% | 12.30 | 12.50 | 12.20 | 12.40 | 12.40 | 8.44 | 28,600 |   |  			
            | 3/17/2010 | -0.30 / -2.38% | 12.60 | 12.70 | 12.30 | 12.30 | 12.30 | 8.37 | 23,900 |   |  
            | 3/16/2010 | -0.20 / -1.56% | 13.50 | 13.50 | 12.50 | 12.60 | 12.60 | 8.58 | 134,000 |   |  			
            | 3/15/2010 | +0.70 / +5.79% | 12.20 | 12.80 | 12.20 | 12.80 | 12.80 | 8.71 | 223,700 |   |  
            | 3/12/2010 | +0.20 / +1.68% | 12.00 | 12.20 | 11.90 | 12.10 | 12.10 | 8.24 | 71,600 |   |  			
            | 3/11/2010 | -0.20 / -1.65% | 12.00 | 12.00 | 11.80 | 11.90 | 11.90 | 8.10 | 30,800 |   |  
            | 3/10/2010 | -0.10 / -0.82% | 12.20 | 12.20 | 12.00 | 12.10 | 12.10 | 8.24 | 32,300 |   |  			
            | 3/9/2010 | 0.00 / 0.00% | 12.10 | 12.20 | 12.00 | 12.20 | 12.20 | 8.30 | 48,800 |   |  
            | 3/8/2010 | +0.10 / +0.83% | 12.10 | 12.20 | 12.00 | 12.20 | 12.20 | 8.30 | 35,000 |   |  			
            | 3/5/2010 | +0.20 / +1.68% | 12.30 | 12.30 | 11.90 | 12.10 | 12.10 | 8.24 | 20,500 |   |  
            | 3/4/2010 | -0.30 / -2.46% | 12.10 | 12.30 | 11.90 | 11.90 | 11.90 | 8.10 | 33,800 |   |  			
            | 3/3/2010 | +0.40 / +3.39% | 11.80 | 12.20 | 11.80 | 12.20 | 12.20 | 8.30 | 93,100 |   |  
            | 3/2/2010 | 0.00 / 0.00% | 12.00 | 12.00 | 11.80 | 11.80 | 11.80 | 8.03 | 34,400 |   |  |