Year	% of GDP
1990	31.52590949013082
1991	31.582466135689785
1992	33.63180897558895
1993	40.70993363776309
1994	43.26406305983518
1995	43.35341412531351
1996	41.60800875958079
1997	39.38316045070182
1998	40.03885920477413
1999	51.94608224164408
2000	47.911890587105006
2001	45.511553305787544
2002	49.553426885991584
2003	52.48280631545528
2004	56.31325011508823
2005	54.2704239409077
2006	51.31649308979909
2007	43.8571223188117
2008	43.51450830728765
2009	53.698239878063525