Year	% of GDP
1980	15.458784990805729
1981	16.500667972120638
1982	18.777804970489374
1983	18.833252864892604
1984	17.84527798501871
1985	19.024381766303623
1986	18.467341486423734
1987	16.092833455900852
1988	14.943123189901272
1989	13.702056362552216
1990	8.147312148496583
1991	8.355518885734929
1992	13.095296408685284
1993	12.755491316958098
1994	13.37736995511786
1995	13.52238109482119
1996	13.841387631458632
1997	15.20438268281978
1998	15.430680853472925
1999	15.080702902989044
2000	14.379586713881675
2001	15.076772023489045
2002	15.474734882836353
2003	15.555412775968797
2004	15.041787410402312
2005	14.61316473630316
2006	13.736014676906109
2007	14.411968248601257
2008	14.812821204867674
2009	16.218304324506754
2010	16.430546373515035
2011	16.39932722426236
2012	16.159417585252807
2013	16.56705458863597
2014	16.363574642824663
2015	17.16936494773711
2016	18.110838260958932
2017	18.816310592582678
2018	19.40511246494181
2019	18.77476941158525
2020	17.278518034464813
2021	16.65627164363205
2022	15.894590169366332
2023	16.1206765198842