Year	% of GDP
1979	0.13156730769230768
1980	0.5054065968815643
1981	0.4624753774110615
1982	0.6641292825224538
1983	0.89071314435397
1984	0.8473069589168553
1985	0.8276947080277852
1986	1.3161802845216284
1987	1.345374530641981
1988	1.3429792131861111
1989	1.2614999617732099
1990	1.185820636507481
1991	0.9676193802134555
1992	1.0188407531270363
1993	0.750527060905584
1994	0.7445238374330136
1995	1.1490291119440423
1996	1.1451831574495879
1997	1.0594717689557058
1998	1.1662241489712255
1999	1.0532486219288337
2000	1.014032490227775
2001	1.274552733420374
2002	1.3605413961970463
2003	2.1753885590202207
2004	2.4237628054568656
2005	2.478480658548083
2006	2.601560380995588
2007	2.4961983468845714
2008	2.331508717010958
2009	2.4265656222042313
2010	2.0596361026183825
2011	1.9682477739466804
2012	1.9166918489655973
2013	1.8061957672480342
2014	1.8729570703847862
2015	2.210914817528001
2016	2.6369300778272353
2017	2.76495197157249
2018	2.907450499710458
2019	3.051883058973042
2020	3.9236600829673334
2021	4.193762667477133
2022	4.199871158767404
2023	3.702802688726756