Year	% of GDP
1962	11.523059320542133
1963	10.210452327792916
1964	10.967503692762165
1965	14.29184856508979
1966	15.476474396102322
1967	16.26045073054427
1968	15.386974119955799
1969	15.426647454096656
1970	14.525967352277695
1971	14.091907901022227
1972	13.694671771638466
1973	16.271913390785812
1974	18.38921061565464
1975	20.764129196225454
1976	22.77116256907809
1977	23.869171357904712
1978	25.192378046889942
1979	26.977519894823338
1980	27.23731798400944
1981	27.405392210123125
1982	23.997476392054644
1983	19.86291223242986
1984	20.868091919296507
1985	19.32133999804311
1986	21.25963080226108
1987	20.864832551226524
1988	18.94848237993182
1989	17.552162669259513
1990	16.82327533004556
1991	17.748658118715362
1992	17.444267703110405
1993	19.58450209742643
1994	21.832045022071433
1995	20.028392465106357
1996	19.525081476969817
1997	19.17145703352913
1998	16.642885263105693
1999	15.927785693499267
2000	15.43961904852058
2001	15.618632813431867
2002	15.195919189282353
2003	17.74617347555938
2004	18.303526614883815
2005	19.146797407133413
2006	19.275506546612753
2007	17.883658472161386
2008	18.92706039930242
2009	18.532281845493458
2010	21.29161342875909
2011	20.947780156924438
2012	19.536014511574777
2013	19.05704731198245
2014	19.777462531570947
2015	19.399793211776796
2016	19.07961837468036
2017	19.19224001824248
2018	19.948822783757226
2019	18.709269574563944
2020	19.882431642243013
2021	22.934790838148793
2022	22.119717547002125
2023	20.557532962207066