Year	% of GDP
1964	2.66922331216189
1965	2.59407239549168
1966	2.54206847006162
1967	3.52349208384078
1968	3.79538365564566
1969	3.07276332391997
1970	3.96532809770659
1971	4.85587853749599
1972	5.05339099993517
1973	5.3307110215109
1974	9.19766821751044
1975	2.93188790053299
1976	3.84609417824158
1977	3.22049100819429
1978	6.19315626462346
1979	7.41515405816425
1980	6.88888244575079
1981	9.77501370189717
1982	8.26066454655116
1983	7.02716127878559
1984	3.97110966311532
1985	3.57335850307297
1986	4.45477802639922
1987	4.34157820949329
1988	5.95634492379774
1989	7.00542595746366
1990	8.61454110316797
1991	10.7484733220701
1992	10.7210108331389
1993	14.0311980046343
1994	14.7361167419938
1995	12.2656637135311
1996	14.233409350057
1997	11.8717036172695
1998	13.5352073963018
1999	15.3902064119455
2000	17.0800144450383
2001	16.3028323434215
2002	20.3102627332747
2003	20.1327261579025
2004	17.3507477479317
2005	14.5436683318932
2006	15.8308802198641
2007	14.7745242569166
2008	13.6629151516452
2009	14.6302707403894
2010	18.3619180287296
2011	21.5599102546733
2012	20.2049254603135
2013	19.3898209324084
2014	19.2934120175417
2015	16.3880924204856
2016	17.1699072573753
2017	15.4637335398577
2018	18.0326439171962
2019	20.7044990184022
2020	23.6377032101354
2021	35.1228098892976
2022	42.2333329372301
2023	48.5344216768058