Year	% of GDP
1960	41.681599766368066
1961	41.16983454156016
1962	41.32930976137114
1963	40.095719474180726
1964	41.358367322549086
1965	41.28560388028444
1966	41.46715176921145
1967	40.665945184099165
1968	39.86151673644302
1969	39.587580589284634
1970	38.21465464353249
1971	36.97275695321781
1972	36.58824187125574
1973	34.911434430004256
1974	34.050168218588574
1975	34.20993990633573
1976	34.044171817809435
1977	33.86230227205062
1978	34.29236789330462
1979	34.41403337240715
1980	35.26349073209245
1981	35.0787271518363
1982	36.87621247672562
1983	37.37974529895559
1984	36.490473977247575
1985	39.56851358781741
1986	40.665666438605555
1987	40.751223728607435
1988	40.98303221181021
1989	41.49764313557984
1990	42.67153701906976
1991	44.00033471104744
1992	44.434889828670705
1993	44.79323628946139
1994	44.576251655931394
1995	45.41025418359843
1996	46.32232530509712
1997	47.89022966682936
1998	50.37016160703682
1999	51.25493633367455
2000	51.08362009480748
2001	51.79957543911888
2002	51.768151322579556
2003	52.30848830725344
2004	52.39690010286987
2005	52.66877669108291
2006	53.1761655626521
2007	53.392631448450736
2008	52.71863683049042
2009	53.937244003421945
2010	53.91157890191788
2011	54.56558206499504
2012	55.50469962316602
2013	56.75112826556721
2014	56.68087390298562
2015	58.521549860084455
2016	59.50895730095549
2017	59.69049529253766
2018	59.78611948603771
2019	60.85216837178471
2020	61.41477138485749
2021	61.04102686096652
2022	61.22699201896893
2023	62.42256345837988