Year	% of GDP
1967	12.580443403415115
1968	13.107670238868257
1969	13.025900244523186
1970	15.457816016133478
1971	14.272982709920168
1972	14.565176099925079
1973	14.828691684744607
1974	17.348178610543055
1975	15.70805968425392
1976	16.130559974430664
1977	16.59252112651746
1978	15.950334471636795
1979	16.974452290570746
1980	17.791420726964247
1981	15.952473277268448
1982	15.856189174560164
1983	15.112789069991436
1984	15.978950779462078
1985	14.783397164419426
1986	17.198951186500707
1987	16.26245389055253
1988	15.059846635782248
1989	15.882241235939496
1990	15.033295935523764
1991	13.563477862319019
1992	17.15874805400462
1993	16.704040634949248
1994	20.28705703636745
1995	21.59542356104933
1996	21.417471279596203
1997	20.60668797092592
1998	20.371055074457175
1999	19.677342819184247
2000	20.08795346146837
2001	20.611315179083658
2002	21.30295738307196
2003	21.593289835231467
2004	23.511566303492593
2005	24.263552827610262
2006	24.950367457818484
2007	25.31236543016076
2008	26.134446637182652
2009	22.647006059897574
2010	25.674111058677056
2011	27.621365188960862
2012	27.45530442038746
2013	25.51253020792748
2014	25.13373184120336
2015	22.191145176708943
2016	21.034237942496564
2017	22.922316242675375
2018	23.693223608998665
2019	23.14733926095423
2020	20.6058391644877
2021	23.038226421165895
2022	24.81329696863501
2023	21.916064870860524