Year	% of GDP
1960	5.433730343534618
1961	5.453210917019358
1962	5.986670750153371
1963	6.332525217551163
1964	6.170118596441491
1965	5.9760283207239775
1966	5.826330456291967
1967	5.843303302960733
1968	6.2183185051674545
1969	5.936936854257168
1970	5.771856352574126
1971	5.973598845129487
1972	6.5891802815697105
1973	8.80556502695047
1974	11.893490614725634
1975	10.322606222073953
1976	11.5687348751763
1977	11.927885531562064
1978	14.46266579187196
1979	16.9875670631484
1980	19.565214736285462
1981	19.959472166265027
1982	17.724657919265958
1983	17.654137812457318
1984	17.98912326651519
1985	15.76656858711893
1986	15.369753534120775
1987	19.387764492142765
1988	21.491115341159915
1989	21.545666407593913
1990	23.421817177739236
1991	25.060083675142113
1992	26.25195883062225
1993	27.016441504161815
1994	28.417288707394945
1995	28.43514446336681
1996	27.89579603155696
1997	29.712488335244437
1998	30.473274901018936
1999	29.901084004994978
2000	33.280914753453
2001	31.03007044923357
2002	31.831651327577486
2003	34.68439225017118
2004	38.39549708665896
2005	40.59475248567235
2006	41.67599031262859
2007	40.4184516581181
2008	37.57954519844247
2009	29.350477401509366
2010	31.24938615555837
2011	30.820692129070327
2012	29.424964863426112
2013	28.35159983487315
2014	27.33448177412741
2015	25.019087239447884
2016	23.382085819808875
2017	23.797933743876087
2018	23.311567770920423
2019	22.40516334386806
2020	21.874280771747586
2021	23.46909106600706
2022	24.929531031167542
2023	23.616064697894913