| 
    
        
            | 
                    Closing price on 3/22/2013
                 |  |  
    
        |           
                
                    | Open | 8.80 |  
                    | High | 8.80 |  
                    | Low | 8.50 |  
                    | Volume | 127,900 |  
                    | Split-adjusted Price | 2.73 |  
                
             | 
 |  EBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/22/2013 | -0.10 / -1.14% | 8.80 | 8.80 | 8.50 | 8.70 | 8.70 | 2.73 | 127,900 |   |  
            | 3/21/2013 | 0.00 / 0.00% | 8.80 | 9.00 | 8.80 | 8.80 | 8.80 | 2.76 | 155,600 |   |  			
            | 3/20/2013 | -0.10 / -1.12% | 8.90 | 9.00 | 8.80 | 8.80 | 8.80 | 2.76 | 96,300 |   |  
            | 3/19/2013 | +0.40 / +4.71% | 8.60 | 9.00 | 8.60 | 8.90 | 8.90 | 2.80 | 123,000 |   |  			
            | 3/18/2013 | -0.10 / -1.16% | 8.60 | 8.70 | 8.50 | 8.50 | 8.50 | 2.67 | 114,200 |   |  
            | 3/15/2013 | 0.00 / 0.00% | 8.70 | 8.90 | 8.50 | 8.60 | 8.60 | 2.70 | 150,900 |   |  			
            | 3/14/2013 | -0.70 / -7.53% | 9.40 | 9.50 | 8.50 | 8.60 | 8.60 | 2.70 | 528,300 |   |  
            | 3/13/2013 | +0.20 / +2.20% | 9.10 | 9.70 | 9.00 | 9.30 | 9.30 | 2.92 | 467,200 |   |  			
            | 3/12/2013 | +0.20 / +2.25% | 8.90 | 9.10 | 8.90 | 9.10 | 9.10 | 2.86 | 437,500 |   |  
            | 3/11/2013 | +0.40 / +4.71% | 8.50 | 9.00 | 8.50 | 8.90 | 8.90 | 2.80 | 216,000 |   |  			
            | 3/8/2013 | +0.10 / +1.19% | 8.40 | 8.50 | 8.40 | 8.50 | 8.50 | 2.67 | 142,400 |   |  
            | 3/7/2013 | 0.00 / 0.00% | 8.30 | 8.50 | 8.30 | 8.40 | 8.40 | 2.64 | 280,100 |   |  			
            | 3/6/2013 | +0.20 / +2.44% | 8.30 | 8.40 | 8.20 | 8.40 | 8.40 | 2.64 | 131,900 |   |  
            | 3/5/2013 | 0.00 / 0.00% | 8.20 | 8.30 | 8.20 | 8.20 | 8.20 | 2.58 | 192,000 |   |  			
            | 3/4/2013 | -0.10 / -1.20% | 8.30 | 8.30 | 8.20 | 8.20 | 8.20 | 2.58 | 124,200 |   |  
            | 3/1/2013 | +0.10 / +1.22% | 8.30 | 8.30 | 8.30 | 8.30 | 8.30 | 2.61 | 37,500 |   |  			
            | 2/28/2013 | 0.00 / 0.00% | 8.30 | 8.40 | 8.20 | 8.20 | 8.20 | 2.58 | 7,300 |   |  
            | 2/27/2013 | 0.00 / 0.00% | 8.20 | 8.20 | 8.10 | 8.20 | 8.20 | 2.58 | 81,000 |   |  			
            | 2/26/2013 | -0.20 / -2.38% | 8.20 | 8.20 | 8.10 | 8.20 | 8.20 | 2.58 | 201,800 |   |  
            | 2/25/2013 | +0.10 / +1.20% | 8.30 | 8.40 | 8.20 | 8.40 | 8.40 | 2.64 | 78,400 |   |  			
            | 2/22/2013 | +0.10 / +1.22% | 8.20 | 8.30 | 8.10 | 8.30 | 8.30 | 2.61 | 132,700 |   |  
            | 2/21/2013 | -0.40 / -4.65% | 8.40 | 8.50 | 8.00 | 8.20 | 8.20 | 2.58 | 183,396 |   |  			
            | 2/20/2013 | +0.10 / +1.18% | 8.50 | 8.70 | 8.30 | 8.60 | 8.60 | 2.70 | 123,600 |   |  
            | 2/19/2013 | +0.20 / +2.41% | 8.30 | 8.60 | 8.20 | 8.50 | 8.50 | 2.67 | 199,800 |   |  			
            | 2/18/2013 | +0.10 / +1.22% | 8.20 | 8.30 | 8.20 | 8.30 | 8.30 | 2.61 | 137,200 |   |  
            | 2/8/2013 | +0.10 / +1.23% | 8.10 | 8.20 | 8.00 | 8.20 | 8.20 | 2.58 | 75,500 |   |  			
            | 2/7/2013 | +0.10 / +1.25% | 8.00 | 8.10 | 8.00 | 8.10 | 8.10 | 2.54 | 81,600 |   |  
            | 2/6/2013 | -0.10 / -1.23% | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 2.51 | 48,000 |   |  			
            | 2/5/2013 | +0.10 / +1.25% | 7.90 | 8.10 | 7.90 | 8.10 | 8.10 | 2.54 | 42,900 |   |  
            | 2/4/2013 | -0.10 / -1.23% | 8.00 | 8.10 | 7.90 | 8.00 | 8.00 | 2.51 | 52,400 |   |  |