Year % of GDP 1994 1.52748235149049 1995 1.10802866673272 1996 1.2341858755475599 1997 1.4024958283427 1999 1.63764997698082 2000 1.15177987264903 2001 0.834770797549002 2002 0.597792822781548 2003 0.538921303543475 2018 3.5554825523167