Year	% of GDP
1970	1.4050706893116283
1971	1.2417569821576977
1972	1.00508603813794
1973	0.8648381666872997
1974	1.1484409807192357
1975	0.9699044523156054
1976	0.5574096961887388
1977	0.5195336946796496
1978	0.46034680025037317
1979	0.2979968822839369
1980	0.0386483631577522
1981	0.38067031371293086
1982	0.3881080705643044
1983	0.3022024132765632
1984	0.3245211431819667
1985	0.24437645093875443
1986	0.15045262338062845
1987	0.44572477182153303
1988	0.4696940956584217
1989	0.9321986498982917
1990	0.4447651434102753
1991	0.38259594976493144
1992	0.4470765690771982
1993	0.7114511581155843
1994	0.9586007691238986
1995	0.7605539504323785
1996	0.6185028349911129
1997	1.3241964054560447
1998	1.0776207404375076
1999	2.164325791440245
2000	1.6235145365302612
2001	3.8086955836928422
2002	2.4698925595916115
2003	2.4912147018590334
2004	1.8316060629901265
2005	2.3960677325949162
2006	1.7024807456064743
2007	2.6083555683575925
2008	3.0627585786758202
2009	3.0239155687035844
2010	2.2997341741385187
2011	2.606693863974315
2012	2.696283418489088
2013	2.265041200480463
2014	2.363209634350895
2015	2.658699499085211
2016	2.0158232557207474
2017	1.7111638077797684
2018	1.6316380156844406
2019	1.503610112894843
2020	1.4664170726343104
2021	3.7068487787469606
2022	1.726893279337641