Year	% of GDP
1960	16.370121960364756
1961	16.2012592002087
1962	15.929643787790598
1963	16.17581685564966
1964	16.6688003969717
1965	16.77763365282488
1966	16.95315409342082
1967	16.717945992159382
1968	17.48960602982502
1969	18.223704857827276
1970	19.265240884006168
1971	19.332113178768417
1972	19.781217839046207
1973	22.425833744315376
1974	27.773631068556178
1975	25.64825198622861
1976	26.759364958573762
1977	26.918091029534867
1978	26.344353507818127
1979	28.67734792801122
1980	30.62869864203088
1981	29.42769907253665
1982	28.0945608621476
1983	26.782856670292826
1984	27.861878187442667
1985	27.21602662975031
1986	25.554397441082006
1987	26.030828389599154
1988	26.371818307074786
1989	27.194782424517243
1990	27.90420635361984
1991	26.754922288508663
1992	26.36499700050772
1993	25.349858463769316
1994	26.919984832048343
1995	29.02785706477531
1996	30.040573627424546
1997	31.365681919977508
1998	31.56805917781533
1999	32.30170793896305
2000	34.915081441212855
2001	33.91075634151735
2002	33.62832473945662
2003	34.68591042941184
2004	37.11705712308029
2005	39.00108289649589
2006	41.8221726547524
2007	43.476484491698116
2008	45.89098616639245
2009	37.62693274036784
2010	41.99959553967986
2011	45.80029916757364
2012	45.29933608985274
2013	45.29696962424178
2014	44.809803579565575
2015	42.08901384789149
2016	40.69714699533768
2017	42.6564787381295
2018	43.986804441412424
2019	42.34369521390765
2020	40.02391799589564
2021	44.32187688136004
2022	49.1919449353374
2023	44.25802181949927