Year % of GDP 1982 5.226375674602248 1983 8.109562456022784 1984 78.79023394687617 1985 10.478334730878187 1986 15.900562292440942 1987 21.81904487861067 1988 28.01162910730811 1989 25.87080782154126 1990 16.06445544695962 1991 11.112914924222373 1992 10.62252945200632 1993 26.36870867013581 1994 37.009216905971414 1995 21.55039116784544 1996 31.45087392415975 1997 39.912324518306605 1998 72.15697168185667 1999 30.166300540623435 2000 26.302348907330632 2001 15.74233060812295 2002 10.881036099491807 2003 10.93099404484255 2004 10.301998825836199