   
 
   
 
                  22                     18                                                    7-17      150                                                         
                                                                                                      
  
  
 
 
 
                                                         165                     180                                           40-70     2-3        52                              
  
   

 
 
                               415                        100                                                                                    
                             1998                                     
  
   


 
                 1                                                   1.5                                                                                                   
                                                               