1979 - 27   23.00       
"",     .  
  .    40 . 
          .
   20 ,    . 
 1980 - 4       
 .   
 . 
 1981 -     . 
 1982 -         
    . 
 1986 - 29       (
" 611"). 
 1987 -  2000  -    
. 
 1989 - 140      .  
    (  
  " "). 
 1991 -  12    ( ),   
 .        -
      
. 
 1993 -  10   .. " "  
  48    200 . 
 1994 -      " " - 
     . 
 1996 -    ()    
,    .  30   
,    5 . . 
 1997 -      " "
     ,  ,  
 .     640 .