| 
                 
                    Closing price on 4/25/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.50 | 
                 
                
                    | High | 
                    7.50 | 
                 
                
                    | Low | 
                    7.50 | 
                     
                
                    | Volume | 
                    174,000 | 
                                 
                
                    | Split-adjusted Price | 
                    2.23 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
EBS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/25/2012
             | 
            
                +0.40 / +5.63%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                2.23
             |                                 
            
                174,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2012
             | 
            
                +0.40 / +5.97%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                2.11
             |                                 
            
                160,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.60
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                1.99
             |                                 
            
                332,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2012
             | 
            
                +0.40 / +6.35%
             |             
            
                6.20
             |           
            
                6.70
             |               
            
                6.20
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                1.99
             |                                 
            
                487,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                1.87
             |                                 
            
                126,898
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2012
             | 
            
                -0.10 / -1.56%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                1.87
             |                                 
            
                105,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2012
             | 
            
                +0.10 / +1.59%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                1.90
             |                                 
            
                150,096
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2012
             | 
            
                +0.30 / +5.00%
             |             
            
                6.10
             |           
            
                6.30
             |               
            
                6.10
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                1.87
             |                                 
            
                128,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2012
             | 
            
                -0.10 / -1.64%
             |             
            
                6.10
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                34,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                74,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2012
             | 
            
                -0.10 / -1.61%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                42,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.10
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                1.84
             |                                 
            
                72,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2012
             | 
            
                -0.10 / -1.59%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.10
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                1.84
             |                                 
            
                23,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2012
             | 
            
                +0.20 / +3.28%
             |             
            
                6.10
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                1.87
             |                                 
            
                74,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2012
             | 
            
                +0.10 / +1.67%
             |             
            
                5.80
             |           
            
                6.10
             |               
            
                5.80
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                57,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2012
             | 
            
                -0.10 / -1.64%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                5.80
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                109,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2012
             | 
            
                +0.20 / +3.39%
             |             
            
                6.10
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                63,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2012
             | 
            
                -0.20 / -3.28%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.80
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                1.75
             |                                 
            
                125,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2012
             | 
            
                -0.20 / -3.17%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                45,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2012
             | 
            
                +0.10 / +1.61%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                5.90
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                1.87
             |                                 
            
                59,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2012
             | 
            
                -0.20 / -3.13%
             |             
            
                6.50
             |           
            
                6.70
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                1.84
             |                                 
            
                225,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2012
             | 
            
                +0.30 / +4.92%
             |             
            
                6.20
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                1.90
             |                                 
            
                368,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2012
             | 
            
                +0.10 / +1.67%
             |             
            
                6.00
             |           
            
                6.20
             |               
            
                5.90
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                1.81
             |                                 
            
                125,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                43,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                97,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2012
             | 
            
                +0.10 / +1.69%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.80
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                72,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2012
             | 
            
                -0.10 / -1.67%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                1.75
             |                                 
            
                17,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.10
             |           
            
                6.20
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                77,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2012
             | 
            
                +0.10 / +1.69%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                1.78
             |                                 
            
                32,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2012
             | 
            
                +0.10 / +1.72%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                1.75
             |                                 
            
                21,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |