Year	% of GDP
1977	3.886964509494897
1978	4.401864740680585
1979	3.837091685459757
1980	4.002906529723039
1981	5.239558981192634
1982	6.28963001455827
1983	6.018275791263052
1984	4.761765131714326
1985	5.057309633538287
1986	5.251934683089989
1987	5.053541150103738
1988	5.1587929164982
1989	5.571923104028556
1990	5.517964181958592
1991	5.876702170688958
1992	6.3864801569719605
1993	6.427623242623544
1994	5.61073675067595
1995	5.6933932353853836
1996	5.673048899476665
1997	5.8699133325999
1998	6.627149601957473
1999	6.249511582472788
2000	6.864955518286926
2001	7.106853192531708
2002	8.673565799273035
2003	5.249530713962069
2004	4.620551924473493
2005	3.9959735228624593
2006	4.139776782324804
2007	3.475402343303654
2008	2.3554898109303135
2009	2.3188186293070805
2010	2.361755904389761
2011	2.6567709218862037
2012	3.0780603418712227
2013	3.094247064070165
2014	3.036664863787754
2015	3.9883834820786443
2016	2.6172693499247983
2017	1.9166447709471024
2018	2.4748310946137204
2019	2.2535808375980375
2020	2.8867766531019994
2021	2.497965608783234
2022	2.7797941842094027
2023	2.7364677366376333