Year	% of GDP
1960	6.6311204366436565
1961	6.5753629574945425
1962	6.701383602789588
1963	6.361831810585511
1964	5.83335768405984
1965	5.530410718613772
1966	5.917742142331178
1967	6.368217148387518
1968	6.189418524290184
1969	5.731427700996706
1970	5.245983765557392
1971	4.689380814247875
1972	4.397554371065297
1973	3.966343814995102
1974	3.9663112275379273
1975	3.857354053503457
1976	3.660050908311904
1977	3.7613007854191065
1978	3.574513446283985
1979	3.593450818404301
1980	3.6912522680386934
1981	4.001139116830276
1982	4.6099848898593
1983	4.385149411159486
1984	4.405573540512777
1985	4.464405662046076
1986	4.046464995548704
1987	3.8974348039508855
1988	3.6337090868676833
1989	3.5565225783523036
1990	3.4467679914819223
1991	3.140863675862849
1992	3.0648004116561585
1993	2.8970949985290324
1994	2.6988724529688684
1995	2.441580931863189
1996	2.3788178385289687
1997	2.3985747741678876
1998	2.338195711976653
1999	2.2571835321150027
2000	2.2659002339286993
2001	2.2994936694432173
2002	2.415179663933396
2003	2.49757193233662
2004	2.512064830625054
2005	2.524839639071507
2006	2.516695057523127
2007	2.4938826446826816
2008	2.588447551411211
2009	2.8527476898378654
2010	2.813381711965409
2011	2.723930710716093
2012	2.6770585895970926
2013	2.581130206768031
2014	2.508621970814369
2015	2.514816708036583
2016	2.4510606587359685
2017	2.3995115688581765
2018	2.380677685435083
2019	2.4504803150893477
2020	2.6412302981341687
2021	2.5170677957439014
2022	2.6152086997772575