Year	% of GDP
1960	37.57670283554122
1961	39.26618185137958
1962	40.884519177004705
1963	43.71302370555882
1964	45.40723667144198
1965	47.29699465379315
1966	46.91704936597572
1967	47.70024085875383
1968	48.03855076645097
1969	48.52644893046984
1970	48.36635738081676
1971	49.51689944444199
1972	52.626855926328965
1973	55.11588555761075
1974	55.82994843346857
1975	53.04340411014823
1976	52.84345105250704
1977	54.941858841385
1978	56.30874444332478
1979	56.52885542070957
1980	55.18631228327953
1981	53.80012898654976
1982	52.77279797755489
1983	52.60986427379526
1984	54.25787214102285
1985	55.68727620839053
1986	57.22516070571181
1987	57.45037460752695
1988	58.12333240095301
1989	57.371129169744314
1990	54.56897341951924
1991	51.429825344130016
1992	48.22268527735033
1993	46.79221615221994
1994	46.7058205525481
1995	47.901579059433935
1996	48.61447359738487
1997	49.06012540424075
1998	49.384014387560974
1999	49.27604331150017
2000	50.66908090726952
2001	54.80021871716404
2002	54.70624127050699
2003	55.942071247178255
2004	58.14872753743143
2005	60.739301548959666
2006	63.861325377516906
2007	65.28816945646331
2008	65.68855377361494
2009	53.900140602122846
2010	52.27171677318144
2011	50.62594978392866
2012	49.89849785571076
2013	49.08047507582038
2014	49.56806294366661
2015	50.83801577497744
2016	52.01192198202263
2017	52.05487234140735
2018	51.78331804274738
2019	52.25065857591898
2020	53.84370168916543
2021	50.40022939116932
2022	51.6586084230718
2023	49.82790875947185