Year	% of GDP
1975	37.4179603088941
1976	36.8782876103444
1977	30.8690345782272
1978	31.4520067178137
1979	56.0299307985901
1980	41.9017222889892
1981	33.037027439471
1982	22.8797386280149
1983	23.6932140726226
1984	25.7520260229299
1985	23.7113309073601
1986	17.0122917735774
1987	22.8978256173288
1988	20.3567774890166
1989	28.6130173334727
1990	35.3156119922356
1991	23.5124336664395
1992	23.314265622308
1993	20.8005002641545
1994	16.966789757447
1995	16.3473463917171
1996	19.1112827067212
1997	16.9646090621951
1998	10.8323014620584
1999	13.3744382605246
2000	20.8440561536495
2001	15.8062390008792
2002	14.6453240587361
2003	17.8057010079321
2004	20.9182068452778
2005	23.9417369873026
2006	25.8820272214672
2007	23.7183455650517
2008	26.67204274176
2009	18.418263242659
2010	22.6797378677807
2011	28.5990789001782
2012	27.0648520266069
2013	26.2480640478396
2014	22.9458647037024
2015	13.1025344354216
2016	11.0807563620506
2017	13.4985731745503
2018	17.0989945007163
2019	15.681591549088
2020	10.4940977026696
2021	15.6730945329946