Year	% of GDP
1960	13.392857826166216
1961	14.655172991336867
1962	16.393442162245186
1963	14.285714408470158
1964	12.080537309130207
1965	12.534289462699027
1966	12.992180376336659
1967	11.885776552785078
1968	13.366812227074234
1969	12.094574295499608
1970	11.621019723057945
1971	14.171680143918062
1972	15.074969669466645
1973	13.332731132288513
1974	15.533937733316172
1975	19.00177059485351
1976	16.65287674916485
1977	17.29141892358081
1978	20.22640080261761
1979	22.722141521369632
1980	23.292065033814392
1981	22.037695696343025
1982	26.907445991885076
1983	24.747759740904847
1984	23.55230978835755
1985	20.78690239280645
1986	22.315630498319983
1987	25.73863172727533
1988	25.953183253928565
1989	22.943565402873098
1990	27.775147257553716
1991	28.505182776618938
1992	29.476950890316928
1993	27.161035756427665
1994	28.481758532921585
1995	27.278283560510975
1996	15.75340125427594
1997	14.439906651108519
1998	19.440279860069964
1999	15.963987703118137
2000	16.23475389477203
2001	15.784843450018968
2002	16.988025225784046
2003	20.994898054130427
2004	24.623369894746144
2005	28.899998675764166
2006	35.099999999999994
2007	31.999998636888126
2008	36.69999931977737
2009	29.20000328540745
2010	29.80000375842597
2011	34.200002553613466
2012	34.00927787209086
2013	37.508823017932464
2014	34.299004611470636
2015	16.421009850429723
2016	16.659203067284093
2017	16.213718772492886
2018	20.914048150470453
2019	23.854170000527187
2020	22.224009999260943
2021	23.81836999960078
2022	23.34422185109566
2023	24.329862664003905