Year	% of GDP
1972	13.913234005258545
1973	15.01465928273166
1974	16.99663802764288
1975	18.168874826972512
1976	19.189613815487466
1977	19.115550716175626
1978	19.247340191682056
1979	22.01377656485165
1980	22.897655883834993
1981	25.474299887093487
1982	21.48992329698856
1983	21.046818349579905
1984	21.508291329139805
1985	21.481026342682917
1986	20.79459051995253
1987	19.853881966304243
1988	16.950870062095017
1989	17.40171199876544
1990	20.228305926669705
1991	18.64803811999286
1992	19.487503102339694
1993	17.077663066847233
1994	18.15552678210987
1995	17.691860384529328
1996	16.953515795166062
1997	18.13771893965198
1998	16.46671448234299
1999	18.059979362237115
2001	18.698702926887936
2002	17.44436725114382
2003	17.323473226498017
2004	18.36550946234519
2008	19.787843998301845
2009	15.108254102357806
2010	14.456858507012344
2011	15.395539884822323
2012	15.468437316994796
2013	15.004945562255884
2014	14.616529108502485
2015	12.966699335304893
2016	12.473823273613585
2017	12.176647570903945
2018	12.993284660044582
2019	12.348538463585658
2020	10.536992071022548
2021	11.815442958824326
2022	15.142963995588415