Year	% of GDP
1965	27.585941799422063
1966	25.09448262156472
1967	25.73187360542998
1968	27.337888813327282
1969	27.768943250721648
1970	27.715731928967926
1971	28.669817856751315
1972	28.97270070122079
1973	30.319675969397725
1974	29.217200075937967
1975	30.79236458026771
1976	29.799134276884594
1977	30.97669818841992
1978	31.31395160375298
1979	31.34610911854811
1980	32.38762928080673
1981	23.53514546296901
1982	23.888033921954165
1983	26.596690809495012
1984	27.813551179750906
1985	26.07577492699682
1986	27.079785459338957
1987	29.083150881542835
1988	30.332954251106816
1989	31.062218270924127
1990	29.599788143693345
1991	29.471734269388246
1992	30.497967265016285
1993	28.835839002411355
1994	29.090540110241527
1995	29.417461902744595
1996	27.329298898189204
1997	28.269180973167025
1998	27.04207660366491
1999	34.594308388094944
2000	32.213286020150065
2001	30.684399844346306
2002	30.655816027333074
2003	32.21893834202859
2004	32.44173280344768
2005	33.0311217610082
2006	33.249819023456574
2007	36.61379289008277
2008	36.736156905201696
2009	38.62865529294763
2010	37.904967984885715
2011	37.750437345177325
2012	37.25545951943704
2013	35.45409392772557
2014	34.50144501969105
2015	35.85267121148979
2016	37.18345797924499
2017	37.382795777939805
2018	37.058468499757794
2019	37.829896257186995
2020	41.20413174968881
2021	41.238352131429195
2022	40.35448585750653