Year	% of GDP
1975	7.559601124990832
1976	14.422237422618522
1977	10.695698476877212
1978	12.016805309404495
1979	12.343170776584934
1980	14.04729538188434
1981	7.88722912275734
1982	2.0230288112782207
1983	5.888598422200551
1984	7.032859098235443
1985	9.242213323879247
1986	12.134488559643273
1987	17.86218908700341
1988	22.82516443399221
1989	23.87210955765738
1990	23.665130888853138
1991	22.66700155660939
1992	21.817224704208478
1993	21.246929282632713
1994	21.51975589565933
1995	24.23508735791459
1996	25.318326399942542
1997	25.076359769833157
1998	23.3949811243072
1999	22.48331626498892
2000	22.501724287909855
2001	22.95400688327928
2002	23.121689709071372
2003	23.537828588537625
2004	24.427733185093608
2005	25.13020974726375
2006	27.64988103747829
2007	27.434231005887604
2008	24.14920778549136
2009	24.276937247315946
2010	25.62769374561601
2011	21.686121494644667
2012	23.468662090411705
2013	22.666318153440482
2014	21.679479479103758
2015	22.733861419088193
2016	21.08780703452682
2017	19.842125113343485
2018	19.603709058886423
2019	19.676400632611653
2020	19.085548677336625
2021	16.625446570735594
2022	16.837004435983225
2023	19.338198990295705