Year	% of GDP
1960	3.1533460686619956
1961	3.0078099882252696
1962	3.1887226074083634
1963	3.286257652126892
1964	3.2472297419824483
1965	3.1895617643598615
1966	3.089937213639011
1967	2.958067543707502
1968	2.9849134179806205
1969	2.7782107998725922
1970	2.4558912418212926
1971	2.715831536710489
1972	3.11129521464504
1973	4.301387777035048
1974	5.002509525469109
1975	4.879515940486922
1976	4.833464648664926
1977	4.728056640187693
1978	7.222873896008626
1979	7.831833882969405
1980	10.152131855582308
1981	12.442140247519763
1982	11.019629367419267
1983	9.517800532677906
1984	9.526692622149818
1985	8.336801726912348
1986	8.712177886855416
1987	12.48213451876919
1988	14.382320818966507
1989	11.844329384091807
1990	13.614710169620839
1991	14.487878146461073
1992	15.658219676138263
1993	16.702294550366016
1994	18.53684105266294
1995	17.952559371297667
1996	17.92324165842583
1997	19.49320443454843
1998	18.34200698184435
1999	18.16258645760113
2000	20.893707297015236
2001	20.312067216313082
2002	22.6446280318572
2003	26.980877144035105
2004	31.061341335474356
2005	33.8299277499811
2006	36.03519728961274
2007	35.43494758084589
2008	32.60250288114416
2009	24.749913906178094
2010	27.18533272038423
2011	26.56818934509021
2012	25.492522224496362
2013	24.59925443687421
2014	23.510060907385746
2015	21.35407988283207
2016	19.584380053602228
2017	19.692276988258957
2018	19.112103536378577
2019	18.409992315527422
2020	18.586139198118254
2021	19.943973830699633
2022	20.791482248650148
2023	19.74307349352212