Year	% of GDP
1977	0.46980653430033714
1978	0.46634138825160965
1979	0.5072939963204167
1980	0.5666516273773539
1981	0.43180488159274355
1982	0.5260030149349504
1983	0.6722214097917326
1984	0.6895313070611361
1985	0.6798369001053588
1986	0.6668880856804958
1987	0.764594126540255
1988	0.7631045446993034
1989	0.8494189560740524
1990	0.702391885689645
1991	0.6668217391127279
1992	0.8347139889277655
1993	0.9642566841278563
1994	0.9063214704291784
1995	0.6929703084433078
1996	0.5654748956346485
1997	0.706641656695816
1998	0.7101593232839141
1999	1.2996050021873162
2000	1.2853595863481448
2001	1.1154191264850284
2002	1.1742438635544479
2003	1.082996733569476
2004	1.234977504712054
2005	2.483422075631726
2006	2.438360811923976
2007	2.329989133418694
2008	2.253725919671075
2009	2.3501228312528104
2010	2.21100852323387
2011	2.3071856862042823
2012	2.235573955294614
2013	2.1183451383271517
2014	2.145680636340353
2015	2.5534770346332767
2016	2.491831671114322
2017	2.590711323943464
2018	2.738835304034679
2019	2.7546654723959376
2020	2.5307314353397916
2021	2.6050676592317608
2022	2.6132679543987822
2023	2.631791378658282