Year	% of GDP
1975	19.752460074155934
1976	14.832735725279269
1977	16.205371064462735
1978	16.028639861570788
1979	15.788688719983279
1980	24.81860720432467
1981	22.575232102327075
1982	23.48671935356564
1983	21.91107348567097
1984	25.281725086392402
1985	25.26178214002051
1986	26.510532968307693
1987	25.92647885382079
1988	26.9863909023048
1989	27.739631170855013
1990	30.439600126252813
1991	26.15992451226991
1992	26.571245139087594
1993	24.881158140427022
1994	23.762980428434187
1995	21.845220710525588
1996	24.586807682403066
1997	24.761798691576168
1998	34.830443302766426
1999	32.96727709531993
2000	32.427286383074836
2001	38.572845830445445
2002	37.96411364040489
2003	39.22805368290455
2004	39.35678087555709
2005	38.77852008342964
2006	39.92387826675439
2007	39.938210742557196
2008	40.19030744802264
2009	35.51072096308109
2010	35.04410299524149
2011	33.76004029793094
2012	31.312863881476517
2013	32.645821242644175
2014	25.31780690344875
2015	28.25859751334065
2016	28.26989401130821
2017	28.591984047032597
2018	27.320563060223215
2019	27.23055960757061
2020	27.695851941825193
2021	28.21718905418796
2022	26.779490023158765