| 
                 
                    Closing price on 12/22/2006
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    51.50 | 
                 
                
                    | High | 
                    51.50 | 
                 
                
                    | Low | 
                    51.50 | 
                     
                
                    | Volume | 
                    6,900 | 
                                 
                
                    | Split-adjusted Price | 
                    21.65 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
POT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/22/2006
             | 
            
                -4.20 / -7.54%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                21.65
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2006
             | 
            
                -6.10 / -9.87%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                55.70
             |                           
            
                55.70
             | 
            
                55.70
             |                     
            
                23.42
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2006
             | 
            
                +61.80 / +0.00%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                60.00
             |                           
            
                61.80
             | 
            
                61.80
             |                     
            
                25.98
             |                                 
            
                8,600
             |            
            
                 
             |                                       
         
    
         
    
    
 |