Year	% of GDP
1960	7.938126441710777
1961	8.871395906290456
1962	9.46881139333509
1963	9.424679921366922
1964	10.030152607925105
1965	10.780833890022192
1966	10.731319971103863
1967	10.960960334602635
1968	11.223206334151685
1969	12.20683797603118
1970	13.571963801875167
1971	15.933060133250276
1972	15.597471517327497
1973	15.757451857910679
1974	16.19756399826961
1975	16.992211224396105
1976	16.184918757695456
1977	13.623960285678582
1978	16.28898367900506
1979	18.191166924483973
1980	16.8565978181343
1981	17.613687261660047
1982	17.393228712727396
1983	16.858546459861344
1984	15.163071199476494
1985	14.087022558482273
1986	15.128134712689215
1987	16.29444035311527
1988	17.102724894355482
1989	18.254278322745428
1990	16.79974696295838
1991	16.361248622046293
1992	17.441820790482538
1993	15.474402675644761
1994	12.024110273161543
1995	10.608241531907945
2015	9.347875999760321
2016	9.865195072380379
2017	10.268385961571704
2018	10.047344032595971
2019	10.827642599199304
2020	11.321604445675678
2021	9.962659467262489
2022	10.417044711357676
2023	10.304816568083421