Year	% of GDP
1962	9.17846855162739
1964	11.306563802374866
1965	11.502088890268503
1966	12.352234696590562
1970	11.951414764606998
1972	13.100106303931456
1974	9.466188169108115
1975	9.992765314721096
1976	11.42202640585375
1977	13.308257554836254
1978	14.48746301597528
1979	14.49834771382073
1980	15.183311619405947
1981	10.552664300674476
1982	11.303622876531925
1983	12.358628090616431
1984	12.878878463851974
1985	13.291642373840611
1986	15.039984241733862
1987	15.238166741039368
1988	14.617426328212725
1989	14.601028402128177
1990	13.124438430719131
1991	12.04817965779416
1992	12.990421447614363
1993	12.415605019976072
1994	11.896913276701762
1995	12.638381212592847
1996	12.101469348902707
1997	12.64185392030063
1998	12.875191546896643
1999	15.362730120657886
2000	13.465134428241095
2001	14.56680924878425
2002	14.815830405627613
2003	14.991331173574107
2004	15.454510745294174
2005	15.731054106346567
2006	15.874169381677806
2007	17.681711847850003
2008	19.47835048313706
2009	19.847729038453412
2010	18.60870399348536
2011	17.920210365448412
2012	17.983696441882298
2013	18.06647602046013
2014	19.763254240466722
2015	21.152781430755926
2016	22.669733547092616
2017	23.509212680697065
2018	23.475235168322
2019	24.054270241752203
2020	24.734705601797916
2021	25.490752709304374
2022	26.222572281367512