Year	% of GDP
1970	52.01026985687752
1971	51.935430576207274
1972	51.32911281719452
1973	50.25013853826735
1974	49.04142200706216
1975	50.201630501195815
1976	50.60244035509053
1977	51.87266934578763
1978	49.97191322210696
1979	49.730364556039945
1980	46.99650306806293
1981	46.44081169711763
1982	47.18308291597106
1983	46.881511907965404
1984	45.54360831296423
1985	47.38443319902845
1986	51.4735905085305
1987	50.74156446791017
1988	50.27165238132525
1989	49.10955695166489
1990	48.88119264770404
1991	49.09155574006407
1992	49.9314346575361
1993	49.73421822046035
1994	49.50258681604294
1995	48.893512663813496
1996	48.070869426703275
1997	46.90469097727233
1998	48.50453259177972
1999	47.14247475054542
2000	42.405170654389416
2001	42.60589720611627
2002	44.622717203328335
2003	45.606445435765764
2004	44.198189945546254
2005	41.78961130915451
2006	40.08825680230449
2007	40.30270649536856
2008	38.16554067582333
2009	42.0494304245747
2010	41.72374470848649
2011	40.03976612932213
2012	39.442596616519424
2013	39.94350127089781
2014	40.749313044314334
2015	43.26481870229312
2016	45.29531921175468
2017	44.28562701788058
2018	42.721302830832016
2019	43.8989896125509
2020	43.447101391707534
2021	37.61271861183724
2022	31.81621494729503
2023	37.51622993936598