Year	% of GDP
1967	12.2338015405528
1968	13.1738139631241
1969	14.9393414211438
1970	16.7751909785376
1971	17.5249169435216
1972	19.007853822728
1973	18.0100162026808
1974	18.2725387336831
1975	16.9087003222342
1976	22.7853610286845
1977	22.1738113795791
1978	24.5356900067981
1979	26.9079872204473
1980	28.985534591195
1981	30.7289088863892
1982	33.6218579234973
1983	35.0933786078098
1984	36.3101851851852
1985	39.5057273768614
1986	40.8299663299663
1987	39.4362244897959
1988	40.4302325581395
1989	42.7799483966089
1990	37.8231204943357
1991	40.7226065610355
1992	40.6192123908387
1993	21.503224036219
1994	8.20109445868665
1995	6.5923849216345
1996	13.1882081835183
1997	17.1703515404688
1998	18.1780934244047
1999	14.5262095042049
2000	7.91197862137439
2001	8.78797827189922
2002	15.9653838913094
2003	17.227183177166
2004	18.7558718627611
2005	19.319818720147
2006	17.4884111348182
2007	21.3584594965176
2008	23.8646397246909
2009	24.4076977224826
2010	24.0185392688126
2011	23.6572660681081
2012	24.1947896158436
2013	27.8152813950886
2014	29.730243552903
2015	33.7330206067527
2016	36.3293876411773
2017	28.2868866474438
2018	24.2780778063315
2019	23.0940833809237
2020	24.2209075589577
2021	18.2605811008906
2022	20.2915610934568
2023	15.2391628410167