Year % of GDP 1987 50.1286031661097 1988 54.26450320153976 1989 41.99224724496795 1990 35.91672585196422 1991 42.6370308354182 1992 32.157382534466464 1993 34.931765017017554 1994 26.965157709686103 1995 56.1987210614296 1996 81.49968484358541