Year	% of GDP
1965	14.186015831134565
1966	16.419209039548022
1967	17.691102756892228
1968	19.457343652699937
1969	20.460755813953487
1970	27.828911325037176
1971	26.97264798035397
1972	25.50130841121495
1973	25.868018386751462
1974	23.52517217447013
1975	31.424389002036662
1976	32.42731575388776
1977	35.17368103101087
1978	28.40938374727863
1979	31.279506841076532
1980	29.60895678286983
1981	28.080851552189134
1982	36.415598142018744
1983	34.778293312924525
1984	34.551815047657676
1985	29.720584284280037
1986	31.33315847938781
1987	29.05578742348358
1988	32.85134477500568
1989	30.313766282719477
1990	21.824951473442738
1991	22.360060070791175
1993	14.071674661622009
1994	13.5634130797137
1995	15.690536548662825
1996	16.03823825513859
1997	15.406776036073982
1998	16.61840754443266
1999	17.19557975502039
2000	21.686025256823925
2001	17.860977968842974
2002	18.34709056346875
2003	18.230692576991654
2004	18.774310459335226
2005	15.497101631514331
2006	18.061588562426717
2007	18.48366632389696
2008	19.101743578018958
2009	17.837365319148297
2010	18.429632941996143
2011	19.122023556473472
2012	19.57691458577996
2013	20.512792417412694
2014	20.926979414247697
2015	25.772645330559328
2016	20.623568485047432
2017	21.963248169650765
2018	22.893493790093196
2019	23.598096489018815
2020	31.205962018209117
2021	24.331182848653746
2022	27.127120644392583
2023	29.326791846816963