Year	% of GDP
1960	2.594768307834849
1961	2.7277976402339634
1962	3.615211560349879
1963	3.8287016121433126
1964	4.439593712920201
1965	5.066052842211959
1966	5.517593031134875
1967	5.3928605826707114
1968	6.435599754244503
1969	5.9845974874818335
1970	5.36687488855322
1971	4.896324281398816
1972	5.514927943334498
1973	5.78650692010074
1974	8.37786871850649
1975	12.492213773701422
1976	10.807219205288545
1977	9.88039121573697
1978	13.112019327048555
1979	16.543975425944275
1980	16.812641931288937
1981	17.39006547021694
1982	16.787933880584248
1983	17.216271227456524
1984	16.959749093943636
1985	15.633807613816533
1986	17.284348561898
1987	16.130681507546115
1988	15.755594105275708
1989	12.955414971663245
1990	8.683549254358768
1991	8.12808944641867
1992	8.07568380512056
1993	7.504254381347589
1994	6.63681589265617
1995	3.6526414155300406
1996	3.5195732284552284
1997	2.659133191550798
1998	3.165781422636212
1999	3.0550430169622174
2000	3.8594042752044295
2001	5.9177826876628785
2002	4.414140540122411
2003	4.572364065523872
2004	4.343879124721776
2005	3.8300464337452906
2006	3.7549000577139093
2007	6.981084165051133
2008	7.969715983364857
2009	8.805430517634619
2010	8.954859941091376
2011	9.803936122507661
2012	9.874706052701242
2013	10.370872147599808
2014	10.591861600512003
2015	11.191575403638327
2016	11.403653905725962
2017	11.345588630141656
2018	10.14017797350817
2019	11.157285624317636
2020	11.643612984681456
2021	12.976091531645118
2022	12.451377254883129
2023	10.94882376004705