Year % of GDP 1990 20.3758087117259 1991 17.86438741318 1992 13.6848478325216 1993 13.8328237725224 1994 13.6012376976137 1995 13.8121634047025 1996 21.5720474714738 2000 6.65631857954632 2001 8.11867636270537 2002 7.65930385381778