Year	% of GDP
1962	15.048274951592996
1963	14.838315554452958
1964	15.178943481302934
1965	14.857170972589968
1966	14.87051548499197
1967	15.407236174428482
1968	15.31460811971049
1969	15.369865749789522
1970	15.871771599418011
1971	15.596983376325557
1972	15.4851959256545
1973	15.388314452673454
1974	17.590124808725736
1975	15.15835516884664
1976	15.516025206825764
1977	16.891871386734987
1978	16.67317744665806
1979	15.300779997862984
1980	15.643963251549122
1981	16.03594806748795
1982	15.934006295452036
1983	16.10433153435589
1984	15.56232546899178
1985	15.630242386770357
1986	15.337034147886039
1987	14.472188333659034
1988	15.486557590018757
1989	14.126116063203966
1990	14.484147955784184
1991	14.078189732486173
1992	14.076879706536916
1993	13.987419006196324
1994	14.154083612860724
1995	14.54910511586918
1996	14.399737294547876
1997	13.728534373040096
1998	14.350189261328994
1999	15.565969464415296
2000	15.677827504495545
2001	16.206818125217776
2002	16.39349356681387
2003	17.51456421295314
2004	17.93486377831787
2005	17.95905238712816
2006	18.321627152574184
2007	18.19339504444552
2008	20.33529114266482
2009	19.79301113519549
2010	18.551603908290048
2011	18.39381231186733
2012	18.521618713173265
2013	18.31659134821119
2014	18.76751007601667
2015	19.416487054587805
2016	19.061240797967567
2017	19.45276981757988
2018	18.992748308257877
2019	18.795168240080606
2020	18.704427534821562
2021	19.189811303604046
2022	19.502538610839242
2023	19.430290955354412