Year	% of GDP
1960	14.306105689244871
1961	13.487595638395137
1962	13.48331287422673
1963	13.644532964547219
1964	13.065447588157237
1965	12.444532299180532
1966	13.636384913049161
1967	12.886267071004374
1968	11.839451084114641
1969	10.682114389134966
1970	11.02782246060882
1971	10.70916372118591
1972	10.55072853682301
1973	12.819690413672673
1974	14.506268044932249
1975	15.698216328044774
1976	16.56137194859955
1977	16.175581661794922
1978	16.87078998412724
1979	19.173068763009987
1980	20.20932495205317
1981	18.876539321170707
1982	18.18516484160407
1983	17.973277824468916
1984	17.707596473767104
1985	16.943402990144264
1986	16.103872066316246
1987	16.47155822158772
1988	17.379772394352862
1989	18.885509669569238
1990	19.36828807065215
1991	20.587745771744366
1992	22.255839241847458
1993	23.699508137931996
1994	23.7848080080338
1995	26.64176887963775
1996	25.861658341456398
1997	26.37505983182188
1998	26.958248824747933
1999	27.689121573892315
2000	28.691801837539852
2001	28.142688854409506
2002	30.43749502134222
2003	31.30084586882764
2004	36.89051248795749
2005	41.296674341894224
2006	44.762929626799504
2007	44.568281981250735
2008	51.04614508403161
2009	44.72566858011706
2010	46.719251730603304
2011	52.58510543991233
2012	52.681711334088284
2013	50.94875507192471
2014	46.68746990158741
2015	40.711402016709876
2016	38.221274954254895
2017	38.76387209496159
2018	41.54622255395217
2019	38.65048200345953
2020	35.99286079312268
2021	42.33973953402654
2022	47.30183254326437
2023	42.94265871418768