 . 

 
  1981   .       1992     .    -     .  1996     .    97.

     . .   1997         .       ""     .        -      . 

      .  "" (1999)  "" (2000),          .     " ".        "",    . 

            ,      ,             .

 2001        ""      .  2002      ""   ""   ,       .

       " "   .