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            | 
                    Closing price on 5/10/2013
                 |  |  
    
        |           
                
                    | Open | 8.90 |  
                    | High | 9.00 |  
                    | Low | 8.80 |  
                    | Volume | 71,100 |  
                    | Split-adjusted Price | 2.83 |  
                
             | 
 |  EBS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/10/2013 | 0.00 / 0.00% | 8.90 | 9.00 | 8.80 | 9.00 | 9.00 | 2.83 | 71,100 |   |  
            | 5/9/2013 | +0.10 / +1.12% | 8.80 | 9.00 | 8.80 | 9.00 | 9.00 | 2.83 | 102,100 |   |  			
            | 5/8/2013 | +0.10 / +1.14% | 8.80 | 9.00 | 8.80 | 8.90 | 8.90 | 2.80 | 235,400 |   |  
            | 5/7/2013 | -0.20 / -2.22% | 9.00 | 9.00 | 8.80 | 8.80 | 8.80 | 2.76 | 143,200 |   |  			
            | 5/6/2013 | +0.20 / +2.27% | 8.80 | 9.00 | 8.80 | 9.00 | 9.00 | 2.83 | 190,700 |   |  
            | 5/3/2013 | +0.20 / +2.33% | 8.70 | 8.80 | 8.60 | 8.80 | 8.80 | 2.76 | 102,800 |   |  			
            | 5/2/2013 | +0.20 / +2.38% | 8.50 | 8.80 | 8.40 | 8.60 | 8.60 | 2.70 | 54,700 |   |  
            | 4/26/2013 | 0.00 / 0.00% | 8.40 | 8.40 | 8.30 | 8.40 | 8.40 | 2.64 | 28,300 |   |  			
            | 4/25/2013 | 0.00 / 0.00% | 8.40 | 8.40 | 8.30 | 8.40 | 8.40 | 2.64 | 51,800 |   |  
            | 4/24/2013 | 0.00 / 0.00% | 8.50 | 8.50 | 8.30 | 8.40 | 8.40 | 2.64 | 34,500 |   |  			
            | 4/23/2013 | 0.00 / 0.00% | 8.40 | 8.40 | 8.30 | 8.40 | 8.40 | 2.64 | 36,300 |   |  
            | 4/22/2013 | 0.00 / 0.00% | 8.40 | 8.50 | 8.30 | 8.40 | 8.40 | 2.64 | 93,600 |   |  			
            | 4/18/2013 | -0.30 / -3.45% | 8.60 | 8.60 | 8.30 | 8.40 | 8.40 | 2.64 | 159,100 |   |  
            | 4/17/2013 | 0.00 / 0.00% | 8.80 | 8.80 | 8.60 | 8.70 | 8.70 | 2.73 | 12,000 |   |  			
            | 4/16/2013 | 0.00 / 0.00% | 8.60 | 8.80 | 8.50 | 8.70 | 8.70 | 2.73 | 187,100 |   |  
            | 4/15/2013 | -0.20 / -2.25% | 8.90 | 8.90 | 8.60 | 8.70 | 8.70 | 2.73 | 82,200 |   |  			
            | 4/12/2013 | +0.10 / +1.14% | 8.80 | 8.90 | 8.70 | 8.90 | 8.90 | 2.80 | 47,700 |   |  
            | 4/11/2013 | +0.10 / +1.15% | 8.70 | 8.80 | 8.70 | 8.80 | 8.80 | 2.76 | 19,800 |   |  			
            | 4/10/2013 | -0.20 / -2.25% | 8.80 | 8.80 | 8.60 | 8.70 | 8.70 | 2.73 | 72,600 |   |  
            | 4/9/2013 | 0.00 / 0.00% | 8.90 | 8.90 | 8.80 | 8.90 | 8.90 | 2.80 | 35,300 |   |  			
            | 4/8/2013 | 0.00 / 0.00% | 8.80 | 9.00 | 8.80 | 8.90 | 8.90 | 2.80 | 114,800 |   |  
            | 4/5/2013 | +0.10 / +1.14% | 8.80 | 8.90 | 8.70 | 8.90 | 8.90 | 2.80 | 52,100 |   |  			
            | 4/4/2013 | -0.10 / -1.12% | 8.80 | 8.80 | 8.70 | 8.80 | 8.80 | 2.76 | 46,100 |   |  
            | 4/3/2013 | 0.00 / 0.00% | 8.90 | 8.90 | 8.90 | 8.90 | 8.90 | 2.80 | 13,500 |   |  			
            | 4/2/2013 | +0.10 / +1.14% | 8.80 | 9.00 | 8.70 | 8.90 | 8.90 | 2.80 | 179,700 |   |  
            | 4/1/2013 | 0.00 / 0.00% | 8.70 | 8.80 | 8.60 | 8.80 | 8.80 | 2.76 | 29,600 |   |  			
            | 3/29/2013 | +0.10 / +1.15% | 8.70 | 8.80 | 8.60 | 8.80 | 8.80 | 2.76 | 38,400 |   |  
            | 3/28/2013 | -0.10 / -1.14% | 8.80 | 8.80 | 8.70 | 8.70 | 8.70 | 2.73 | 54,000 |   |  			
            | 3/27/2013 | +0.10 / +1.15% | 8.70 | 8.80 | 8.70 | 8.80 | 8.80 | 2.76 | 76,700 |   |  
            | 3/26/2013 | 0.00 / 0.00% | 8.80 | 8.80 | 8.70 | 8.70 | 8.70 | 2.73 | 141,600 |   |  |