Year	% of GDP
1970	0.5582049029196743
1971	0.4224053283323723
1972	0.5404477072200404
1973	0.49337729501755306
1974	0.6517408519416688
1975	0.5241351307778386
1976	0.667220431774342
1977	0.7804673707623155
1978	0.3978058710223182
1979	0.5005472735084325
1980	0.4395396300397203
1981	0.6364272736131872
1982	1.0594418067245526
1983	1.3884404121104257
1984	1.3711414747468813
1985	1.5818004844928746
1986	2.6330522094470243
1987	2.612075540949514
1988	3.6095865641583043
1989	4.723931748927555
1990	5.5868548593317815
1991	2.6482928355812416
1992	0.14728894771327705
1993	0.690572785666809
1994	2.9189934058754736
1995	4.264344013446179
1996	1.7521867704780116
1997	4.519369401091773
1998	10.268478516399643
1999	8.893198543085436
2000	15.307187509114051
2001	6.100373822076255
2002	6.2457743613746475
2003	6.682669887421222
2004	7.318226787893674
2005	9.75921064525029
2006	5.105931328626071
2007	11.377310484361473
2008	6.715122769953495
2009	6.064739621313405
2010	4.461933075072406
2011	4.14113220092927
2012	3.1666428339050348
2013	4.753094712036467
2014	-0.6538356742768602
2015	2.94991853889319
2016	0.24668265980949663
2017	7.357884512050418
2018	2.305281200319426
2019	4.2887992043288286
2020	4.1229630912870485
2021	9.866090181336249
2022	10.442875420513024