Year	% of GDP
1977	24.680567400985257
1978	25.835201482730984
1979	22.56619308826674
1980	21.460289850011826
1981	20.875364781975055
1982	19.62077962181543
1983	18.76183419063657
1984	18.27027163517488
1985	18.37940778515719
1986	20.11747453989958
1987	19.757183515648528
1988	18.871353561940335
1989	15.490839392428626
1990	16.34244106939286
1991	15.681879466091411
1992	14.822140641812773
1993	14.160079647619622
1994	14.405794258976478
1995	12.166592463674263
1996	12.971856507469873
1997	12.544158812815528
1998	12.065341006995899
1999	12.137315099078984
2000	11.9039950242678
2001	11.2949757770399
2002	10.840012004935362
2003	11.038470666925583
2004	11.197853627047527
2005	11.487661287862611
2006	10.501290714448409
2007	10.44642307793726
2008	11.564856803356209
2009	12.55206361226808
2010	11.466028665071663
2011	12.501016432948692
2012	12.019600820003202
2013	13.984688568455478
2014	13.449002248854223
2015	14.055575723121391
2016	16.271805221683742
2017	13.405151293504428
2018	11.023579993056853
2019	11.98316324985616
2020	15.155944703168844
2021	16.95815157215085
2022	15.825977686005869
2023	14.79629398905866