Year	% of GDP
1976	26.683942619157797
1977	22.388015299617507
1978	20.294203961848865
1979	23.297101449275363
1980	19.530083439882894
1981	23.15061127454534
1982	29.54343073082831
1983	30.494288633881606
1984	27.087635066972204
1985	28.326956272066422
1986	25.85194015467394
1987	26.078281188632857
1988	30.920510165070166
1989	31.299618623296194
1990	24.588574770666796
1991	27.824833992727438
1992	26.81628471908936
1993	25.73222283520755
1994	26.328152945438514
1995	26.726422487820017
1996	28.178968761206217
1997	31.005403191640784
1998	32.95674824174496
1999	32.15642691332021
2000	29.94954617534965
2001	33.00280522334704
2002	35.648449587080115
2003	38.774093396280875
2004	40.34067219154981
2005	40.274571986750416
2006	42.35370443370314
2007	45.61743627600269
2008	49.52906169640857
2009	52.97797320601436
2010	50.01390698699755
2011	47.77907082887164
2012	46.7878641462442
2013	45.049395372650956
2014	44.81582157759385
2015	45.74881492377482
2016	44.5326196323339
2017	44.25052140212234
2018	44.98299881436995
2019	45.63299955498361
2020	54.92329080410245
2021	47.57068412684752
2022	42.58061382184105
2023	38.924333384123116