Year	% of GDP
1960	2.1817432127648373
1961	2.2316791644627885
1962	2.7775454935694954
1963	3.9216922486005266
1964	3.7613932757308577
1965	3.9745461404690676
1966	3.869120104714651
1967	3.423295626461391
1968	3.412893985678058
1969	3.3724205707902914
1970	3.4808943088484083
1971	3.9573621014779286
1972	4.041426464990175
1973	3.064756976683104
1974	3.055054107950302
1975	3.2680021703130366
1976	3.4630316595326343
1977	3.211446391371641
1978	3.1707959260640814
1979	3.2324775358350792
1980	3.1406702073101602
1981	3.221144798305015
1982	3.4697384774347304
1983	3.4755163357267396
1984	3.556834869890317
1985	3.7039859940345394
1986	4.136837758222951
1987	4.237927340907285
1988	3.8172057807943487
1989	3.627928605243104
1990	3.295232490209755
1991	3.213028701032584
1992	3.1066999473844494
1993	3.1943648548810195
1994	2.985481394127957
1995	2.985267933468781
1996	2.890323191357921
1997	2.9312613859959016
1998	2.963175064143322
1999	3.086747655593298
2000	3.041499481558634
2001	2.9470461316402057
2002	2.863027120159058
2003	2.7458348147488123
2004	2.8540579218628843
2005	2.8997074960060925
2006	2.7003046362000678
2007	2.5363010625220204
2008	2.64510590855238
2009	2.9981063856146966
2010	2.821230901906323
2011	2.659303432952132
2012	2.5896980636925857
2013	2.522671633616733
2014	2.525007131134124
2015	2.4048948929570275
2016	2.434378070204787
2017	2.4328831804804714
2018	2.357831605747553
2019	2.449057538087463
2020	2.6136570141448887
2021	2.3493327125932217
2022	2.2750422766709164