Year	% of GDP
1960	18.36883435582822
1961	17.563728813559322
1962	16.454947368421053
1963	18.373396226415096
1964	18.864661354581674
1965	20.26084249084249
1966	19.456447368421053
1967	20.156475903614457
1968	19.38931880108992
1969	19.664802955665024
1970	22.739189189189187
1971	20.241755102040816
1972	20.313238938053097
1973	21.3820984081042
1974	23.17228888888889
1975	23.692290909090914
1976	22.28855579868709
1977	22.84571119524067
1978	23.605494223363284
1979	25.94664928292047
1980	25.72981766983546
1981	25.944302258986628
1982	21.559886463221396
1983	19.781511264651126
1984	18.930741759804683
1985	20.009776685914034
1986	17.834198794721658
1987	18.310578737687738
1988	22.751268529315897
1989	23.106241189955668
1990	23.270603544647965
1991	23.42627672817485
1992	23.32059902616693
1993	22.62403065742939
1994	24.337257944811654
1995	19.311543363515014
1996	19.737626961050932
1997	21.14601712516185
1998	22.80395161508613
1999	22.243437752601487
2000	22.264924611872868
2001	20.273821557129374
2002	20.408425624684295
2003	20.880845869919725
2004	22.0461782270566
2005	21.522145969837545
2006	22.564102945485793
2007	23.071914687526952
2008	24.121315885804382
2009	23.25925080575939
2010	23.331489410250388
2011	24.251758131879214
2012	24.37773906170445
2013	22.68073160749348
2014	22.293275980008897
2015	23.736129744028798
2016	24.343392335595837
2017	23.89235070952739
2018	23.477493063329963
2019	22.119350884832535
2020	20.206950967443856
2021	21.61674590026874
2022	22.704741310751718
2023	24.75928671590303