Year	% of GDP
1970	0.5387617051472634
1971	0.5157916024948557
1972	0.5249817191930183
1973	0.6603265480550714
1974	1.8246537690248723
1975	1.8024130784568992
1976	1.8062213463545216
1977	1.7561601335354131
1978	1.4463891894183842
1979	2.5519815292331027
1980	2.786464853611279
1981	2.2623296812124667
1982	1.5134852008259654
1983	1.6950934418546155
1984	1.597409425247772
1985	1.5116692645297378
1986	0.6205876053668484
1987	0.7179924901957208
1988	0.6157153223323776
1989	0.6929540335971673
1990	0.7620179785690863
1991	0.526886104665347
1992	0.5245736471913596
1993	0.519822447361994
1994	0.45554088951976013
1995	0.4739221583078641
1996	0.5989076837283892
1997	0.5420437620111647
1998	0.33387949992787336
1999	0.426906248948191
2000	0.8111431864570733
2001	0.7108062836576544
2002	0.5760955732259513
2003	0.7272612787353023
2004	0.8386674548432657
2005	1.042997458330404
2006	0.9293009792260983
2007	0.9296732153654019
2008	1.4383979944016334
2009	0.662833973399865
2010	0.8954781332162128
2011	1.1205140301657688
2012	0.7949077748027833
2013	0.7733530022787242
2014	0.6830527408631637
2015	0.329153327359678
2016	0.35587984997541466
2017	0.4903540693103533
2018	0.62691589471814
2019	0.6020040378627239
2020	0.44112448652126846
2021	1.3156518372186954