Year	% of GDP
1976	16.020789969493602
1977	14.888426252564797
1978	13.182886010299958
1980	28.55873290354406
1981	22.169327865118184
1982	13.887472373646773
1983	14.629431793757107
1984	16.32245193449189
1985	13.927418541631805
1986	7.895141874213128
1987	8.748987747306582
1988	6.20402974253243
1989	8.732183186694034
1990	9.928424092794403
1991	5.687710393996599
1992	5.748442976494877
1993	5.613262885757699
1994	4.5815215718665145
1995	3.8004238342861
1996	4.615207803222558
1997	4.235427589629278
1998	2.3139419606350913
1999	3.618036649343052
2000	5.969815508864471
2001	4.38978539313835
2002	4.098223891320009
2003	3.9084892367734634
2004	4.508414072700617
2005	5.8970540069912385
2006	6.730227111571552
2007	5.830777538477422
2008	6.683447339898118
2009	4.180748688697748
2010	5.468420002095606
2011	7.4266723722746475
2012	6.726735820619035
2013	6.27995884751523
2014	5.518035543777506
2015	3.0465404155564326
2016	2.2343242809916197
2017	2.600832749219523
2018	3.2967698922895265
2019	2.87041124690421
2020	1.666841786731375
2021	3.054453148095291