Year	% of GDP
1960	16.21756907446413
1961	12.76761930989948
1962	13.663337675495729
1963	17.214284988982648
1964	18.939426293686385
1965	12.456473567584679
1966	11.739788199697418
1967	14.372557533651758
1968	14.412955465587043
1969	15.203066970168924
1982	-0.045924225028702644
1983	2.425234340127957
1984	6.3025100570764545
1985	6.560130522251395
1986	4.573470925663469
1987	-0.4162049234595921
1988	0.20558906411684597
1989	0.937507682199422
1990	-0.47704992269654234
1991	-0.7661752820629957
1992	-0.26486732671566393
1993	6.177609184697927
1994	7.704754480975031
1995	4.934851818068001
1996	10.755626061627003
1997	14.066759880756315
1998	6.029259271490373
1999	8.430122266146107
2000	8.037606963869766
2001	7.008247909331961
2002	5.756084644237877
2003	7.216042185713389
2004	10.227434091926813
2005	11.873689438859337
2006	8.253320778596583
2007	8.841512824631739
2008	15.279790328067111
2009	14.563664368203973
2010	15.243335224198182
2011	12.842050062285407
2012	14.75274819339697
2013	20.345261502432948
2014	23.54522408994137
2015	14.294681832420645
2016	20.864961317654288
2017	21.09924859764046
2018	19.06134782763286
2019	20.05047195523347
2020	19.23659657998665
2021	17.954186577827496
2022	19.286610235803543
2023	19.208184648324263