Year	% of GDP
1970	24.31661951173335
1971	24.449307075127642
1972	23.90752032520325
1973	27.21443321378111
1974	35.00494559841741
1975	27.678257815244116
1976	27.327413348610712
1977	25.250910950584927
1978	22.171460800902427
1979	23.656745264785467
1980	21.527028149132278
1981	25.265957446808514
1982	26.478389294110556
1983	26.851226040174105
1984	29.01759004427426
1985	27.030612033410016
1986	25.108277397201178
1987	22.631385294658735
1988	21.09015213082966
1989	23.37088341508112
1990	20.471054947653265
1991	17.544460094514726
1992	18.665985830088722
1993	21.22494827076559
1994	22.581677704194263
1995	23.65331061141361
1996	23.145171660023145
1997	22.928970090158852
1998	20.811412951903094
1999	23.23256409577052
2000	22.03456303874365
2001	22.952016905960594
2002	22.746539824383603
2003	24.12838576628697
2004	25.28160767085708
2005	25.420868188318185
2006	23.759331178344688
2007	24.775945101862614
2008	22.727368721159834
2009	19.735264298249678
2010	20.174877792094108
2011	20.560015021358495
2012	21.11966307116518
2013	22.136453648457667
2014	22.991442074339
2015	23.144751112973136
2016	23.084350136536003
2017	23.63960319753443
2018	23.933201164047777
2019	23.680879052851505
2020	22.933486182589817
2021	25.160205464554018
2022	25.786598277244416