Year	% of GDP
1970	30.188661787429265
1971	34.31195437305513
1972	35.63015885788347
1973	40.726482435312846
1974	39.24842728547299
1975	25.946713561267643
1976	27.935339256647474
1977	32.60217721833789
1978	36.05310886306715
1979	41.52645047142466
1980	41.84189443920831
1981	35.71855926817731
1982	41.28519522575435
1983	32.25372335132427
1984	51.281414555561646
1985	57.709533003659544
1986	31.83510513479007
1987	38.95615094162919
1988	51.16819428310721
1989	46.189516306675735
1990	37.034513353665815
1991	37.791122785864836
1992	50.111885771898926
1993	32.71686422234522
1994	34.3093712444113
1995	35.14326328772891
1996	31.83576743693266
1997	64.58736358449137
1998	39.39511969726452
1999	40.77053598381868
2000	39.64456164090785
2001	37.5040279005094
2002	28.220496975593512
2003	26.101717087662202
2004	30.25888696287812
2005	32.221428770930366
2006	38.38294063309258
2007	35.12422610915505
2008	33.3723135454016
2009	32.46743937926709
2010	30.875171935742447
2011	29.31936440089766
2012	30.011288996755077
2013	26.74304060035927
2014	30.175537349678837
2015	29.32366362690316
2016	30.525942008950473
2017	30.379367186337582
2018	29.542721705949
2019	29.96120297195109
2020	31.584714688739407
2021	30.872334440704407
2022	30.36863980367143
2023	28.26359243324089