Year	% of GDP
1960	10.68332483426823
1961	14.584311883513386
1962	15.027027027027026
1963	13.39001062699256
1964	13.322300372362433
1976	19.748782118635972
1977	15.567555147058822
1978	13.770288768659148
1979	14.240637714855103
1980	10.72410018096919
1981	14.80889865055991
1982	17.195767195767196
1983	16.07596829669508
1984	13.25293221125174
1985	10.641957260179732
1986	11.375121380868393
1987	12.100330760749724
1988	9.199632014719409
1989	8.04471825320621
1990	10.436930881755519
1991	10.512988259953977
1992	12.369861034280936
1993	15.199292372400686
1994	10.655300724676502
1995	5.5391670895105
1996	12.006718003225952
1997	8.97458620000376
1998	10.226395081726391
1999	10.343765922640742
2000	24.888030863039205
2001	20.531007764712164
2002	21.566351791082823
2003	22.074814442887998
2004	23.611731923039677
2005	21.206776304612333
2006	22.889176993774406
2007	21.30612612825484
2008	20.66890796962097
2009	22.325908295005977
2010	20.398539232300262
2011	23.262434017525933
2012	19.724131619978934
2013	17.195046696631366
2014	15.04153414665295
2015	12.808133532263932
2016	9.305915262550503
2017	10.768634443148528
2018	9.989350237674497
2019	14.305007836220096
2020	5.786535233410679
2021	3.4658092027071437
2022	2.1782642934147565
2023	2.0173622679347503