Year	% of GDP
1970	1.4050706893116283
1971	1.241756982157698
1972	1.0050860381379403
1973	0.8648381666872995
1974	1.1484409807192353
1975	0.9699044523156054
1976	0.5574096961887389
1977	0.5195336946796496
1978	0.46034680025037317
1979	0.297996882283937
1980	0.03864836315775215
1981	0.380670313712931
1982	0.3881080705643044
1983	0.30220241327656333
1984	0.32452114318196656
1985	0.24437645093875446
1986	0.15045262338062845
1987	0.44572477182153303
1988	0.46969409565842146
1989	0.9321986498982915
1990	0.44476514341027523
1991	0.38259594976493144
1992	0.4470765690771984
1993	0.7114511581155846
1994	0.9586007691238986
1995	0.7605539504323786
1996	0.6185028349911129
1997	1.3241964054560444
1998	1.0776207404375078
1999	2.1643257914402447
2000	1.6235145365302608
2001	3.808695583692842
2002	2.4698925595916115
2003	2.491214701859034
2004	1.8316060629901265
2005	2.396067732594915
2006	1.7024807456064748
2007	2.6083555683575947
2008	3.06275857867582
2009	3.023915568703583
2010	2.2997341741385187
2011	2.606693863974315
2012	2.696283418489087
2013	2.2650412004804634
2014	2.363209634350895
2015	2.6586994990852104
2016	2.0158232557207465
2017	1.711163807779768
2018	1.631638015684441
2019	1.503610112894843
2020	1.466417072634311
2021	3.7068487787469606
2022	1.7268932793376413