 

      ( -, ) 18  1954 .      .        . ,   ,     . 

,     ,   .          -,  ,     . 

 1975       , ,     .          1977 .         .  1978    .    1970-   1980-        .   1983        .    ,       . 

      -   :  (1985),   ,   (1989),   (1994),   (  ),   (1996),   (1997),  - (2001),  "" (2003),   (2007),     (2010)  .

 2000        ,     .     .

          -    ,     .