Year	% of GDP
1962	7.655133336215652
1963	9.024044913186012
1964	9.026832097494257
1965	8.616100986903325
1975	14.343597178008077
1977	16.123945902249613
1978	17.77889410651236
1979	18.465442830871265
1980	18.60507468023214
1981	17.882006924310684
1986	15.554782412558577
1987	16.518123130254818
1988	13.976546084138613
1989	13.496925754543371
1990	13.144756837636583
1991	11.589233983718449
1992	11.947340026544538
1993	11.196862108130464
1994	9.975771509839099
1995	9.798087792060322
1996	10.608746975586943
1997	11.172019778340182
1998	12.092604248757418
1999	12.540510444500269
2000	10.404972010555952
2001	11.670826024407594
2002	11.292520962871025
2003	11.401366663831634
2004	11.294141954985214
2005	11.848828862251034
2006	12.511808090224322
2007	13.187990695523139
2008	13.425311034775827
2009	14.619610987007999
2010	14.740917546396114
2011	14.840888192658872
2012	16.10416743962509
2013	16.615956106003555
2014	17.45073950654463
2015	18.93950269337871
2016	19.756390674400937
2017	19.712521646798486
2018	19.799448117544493
2019	20.189228594133965
2020	21.178059978402676
2021	21.34497283636066
2022	23.357226683311083