Year	% of GDP
1975	20.795666917465642
1976	22.274137714276044
1977	20.16656246015571
1978	17.515094829463184
1979	18.5837173404786
1980	19.131217402653053
1981	20.60182113374988
1982	97.77557329731826
1983	95.79235699855138
1984	97.36152856144449
1985	91.60500761239622
1986	84.09729386306984
1987	99.19739679192968
1988	81.03930124131587
1989	77.50881064235398
1990	73.44795814609913
1991	63.177331607049936
1992	58.04086170956896
1993	55.53229873356555
1994	55.58125194190623
1995	49.19285892292001
1996	44.45658388530981
1997	41.70503471616291
1998	34.22983773641865
1999	29.749068195463163
2000	30.532120865604618
2001	29.41248351390583
2002	30.776326909043
2003	29.939343697597597
2004	26.518796000368177
2005	23.932445559445732
2006	23.09964205632675
2007	24.809433062972484
2008	25.55008528215558
2009	27.201527199616653
2010	22.061656395646487
2011	20.694764771903547
2012	19.89781566817739
2013	16.95961350571715
2014	15.381892379498725
2015	14.209565306891456
2016	20.80427661504701
2017	20.65840577932987
2018	20.41247514173677
2019	20.259878609733015
2020	19.328023694016956
2021	17.853541369974316
2022	20.190101923168015
2023	20.94948345121829