Year	% of GDP
1960	16.445103290443
1961	15.913151088240319
1962	14.388388972258905
1963	14.48888933942393
1964	13.64803994639114
1965	13.51098707933039
1966	13.610506395973962
1967	11.990469666029261
1968	11.601315370062682
1969	11.512986098930442
1970	11.209170264449742
1971	11.892155232144379
1972	12.146917201585621
1973	12.109715156569317
1974	12.805700690340984
1975	13.929715863626841
1976	13.97799864050557
1977	13.920277902540953
1978	13.922771353913715
1979	13.920556266307017
1980	14.061360128723802
1981	14.15339145948294
1982	14.280946251889945
1983	14.338991745078452
1984	14.22708733767229
1985	14.11757344111042
1986	13.91473135145978
1987	13.659600514069492
1988	13.328694530204025
1989	13.39881354212546
1990	13.450776816399285
1991	13.499418573417298
1992	13.815657454560782
1993	14.108933184279044
1994	14.196013348016354
1995	14.335850439006464
1996	14.265280447956208
1997	14.376776165075873
1998	15.059383654393857
1999	15.5221017309655
2000	15.694267500788314
2001	16.141301028250712
2002	16.245597058101083
2003	16.148726646352902
2004	15.902893260608439
2005	15.808151947765904
2006	15.565656908634958
2007	15.354054548925456
2008	15.534523970776279
2009	16.27865153094618
2010	15.97863395861841
2011	16.355870757964954
2012	16.59343604271355
2013	16.413176613851963
2014	16.287606346760466
2015	16.375485395840293
2016	16.52341863770651
2017	16.356592993959
2018	16.531143874101627
2019	16.785550596733138
2020	17.516733592474996
2021	16.74069882154945
2022	16.688475392763788