                                     
                               
                            
   
                                                          
                                                                    
                                                                                                             
                                                                                                                                                                             
 
                                                                                  
      
             
                       
                       
                          2000                                                                                         
                                                                                                                                     
          
                   
                   
                     
                     
                     
                     
                   
      
             
           
                  
         
                 
       
             
       
           
      
         
       
                                                   
                                                                                                                          
                                                                                                                                    
                   
             
      
             
                   
          
               
               
      
             
      
             
                                                                   
      
         
        
                 
        
               
        
                 
          
                 
           
                 
         
                 
          
                 
                 
          
                 
         
                 
                 
       
             
       
             
       
                      1800       18                                                                                                                                                                                                                                                                                                 
 
                                                                       
 
  
               
        
               
        
               
         
                 
         
                 
         
                 
        
               
      
             
     
         
                           600       300                                                                                                                                                                                                             
          
                   
          
                 
         
                 
         
               
        
                 
         
                 
          
                 
         
                 
         
                 
        
               
        
               
        
                
     
         
     
     
         
       
         
              
            