Year	% of GDP
1970	1.1059712187744855
1971	1.1699612590052657
1972	1.2399316531891478
1973	1.2495440942907898
1974	0.6434816154546357
1975	0.8671127133267432
1976	0.6516926084169351
1977	0.7408671801996891
1978	0.6024602089173697
1979	0.5273409337367089
1980	-0.049823748626904835
1981	0.38937072380893173
1982	0.30177589555399814
1983	0.3141869482196218
1984	0.17644080288946717
1985	0.43383126678577155
1986	0.08018331287888762
1987	0.5570653767137758
1988	0.4317318395719022
1989	1.3125184776280432
1990	0.35095007315675253
1991	0.478717803060843
1992	0.7241163956276123
1993	1.4950858029854273
1994	1.503403330747382
1995	0.7449965425496505
1996	0.6615237837706565
1997	0.7902663912012915
1998	1.053323928559934
1999	3.1370122634495514
2000	1.6505523224520842
2001	2.755879993119389
2002	2.7487700902940007
2003	3.858823519060777
2004	2.5562069569803088
2005	2.337155274670929
2006	2.0515053717231693
2007	2.4690510283400675
2008	2.5599128171678216
2009	2.883803442874635
2010	2.499416731510152
2011	2.7244057242015662
2012	2.801304445110377
2013	1.6085059407303268
2014	1.2538485247563127
2015	2.0853979628669124
2016	0.9925522952545418
2017	0.8412227347930475
2018	0.6216152430472801
2019	0.6749026051866561
2020	0.8974693513806402
2021	1.2367641788334394
2022	0.9140831643503409