Year	% of GDP
1980	13.360458090046649
1981	13.54562381381022
1982	12.02772024643015
1983	10.458252781943063
1984	10.806062496234121
1985	11.767222117163746
1986	12.438447509054214
1987	12.587854699221952
1988	14.241463125099074
1989	13.138532756076371
1990	13.680991024536471
1991	14.653687577436425
1992	15.832623354580146
1993	17.169591922052906
1994	17.88991588002002
1995	13.394298169182193
1996	15.47155119470116
1997	17.062717107375644
1998	18.93527726946185
1999	18.624564500807463
2000	18.426640276228376
2001	16.861110761438137
2002	15.896784791917836
2003	16.15468219877101
2004	16.730500549777975
2005	16.415345997752826
2006	17.307767471201426
2007	17.95994758756058
2008	18.220986570727664
2009	17.087453660152914
2010	17.1845730236185
2011	18.54148294120176
2012	19.316739575375045
2013	17.760192604819274
2014	17.689919900949626
2015	19.65536308817085
2016	20.29944118749131
2017	20.247168149246257
2018	20.099257498360103
2019	19.177393617899696
2020	17.448041628346626
2021	18.6459648022382
2022	19.649706427800318
2023	21.280299882132947