Year	% of GDP
1960	21.816379630776854
1961	21.643867487785307
1962	21.44771429505227
1963	23.880545485931297
1964	23.096127838280307
1965	24.358974358974358
1966	25.325264750378214
1967	24.38847879577363
1968	22.618083670715254
1969	20.342638073559364
1970	20.11781705012782
1971	23.95534920478119
1972	16.779342723004696
1973	13.153998025666338
1974	15.045510120907485
1975	10.915426634017706
1976	9.606505128100356
1977	7.798477564102564
1978	18.862501347321526
1979	17.531351900982926
1980	26.032251066599176
1981	22.059373364241385
1982	17.520091848450058
1983	13.643803005505134
1984	14.325156819052925
1985	15.008331525909933
1986	15.238280026660345
1987	18.043291887209904
1988	17.77736698725938
1989	18.093227819953828
1990	19.3688229013038
1991	21.937771550694837
1992	24.291055246287954
1993	21.17731156074493
1994	19.098828026462012
1995	20.83115352971687
1996	23.42437360842026
1997	20.79905328655041
1998	20.404874343647833
1999	23.77313626005116
2000	22.097624045128214
2001	23.81189414465635
2002	25.06451499003851
2003	25.199001630155628
2004	22.76320549688446
2005	24.814585504048694
2006	28.35787240624915
2007	30.052348124929818
2008	31.97812586083832
2009	28.450311766613645
2010	24.44476616236888
2011	26.899501619938025
2012	28.010408369724953
2013	26.59611920215737
2014	21.066190174332057
2015	24.81197301769888
2016	18.782197607531227
2017	20.175923512239535
2018	21.55135253880561
2019	22.251995948005206
2020	21.585893851908043
2021	25.93262257295057
2022	22.483306493760676
2023	23.840477308829154