Year	% of GDP
1970	0.2623443927371898
1971	0.2406819481169066
1972	0.2427787915024171
1973	0.32845925042505836
1974	0.4257163105760658
1975	0.30635780243186855
1976	0.2576423048346518
1977	0.27425510093120953
1978	0.3594050862681179
1979	0.46522794643914445
1980	0.7200723818294835
1981	0.7496176604260921
1982	0.5827642341925499
1983	0.40540614004163833
1984	0.7032983777232371
1985	0.23137892475368427
1986	0.6787282864179283
1987	1.3583124490574965
1988	1.1157053657478058
1989	1.3360352389115608
1990	1.214042415142125
1991	0.5621939158989719
1992	0.5246625258991507
1993	0.7315312523347249
1994	0.8323316132981587
1995	1.003401680506123
1996	1.22335685641755
1997	1.487385842293891
1998	2.4353936169076045
1999	3.2965049619675177
2000	3.7956854768692603
2001	1.7742706464700464
2002	1.159144568528588
2003	1.0046043447321593
2004	1.629823149595363
2005	1.1812469206176053
2006	2.395332734194672
2007	2.9322072168031297
2008	2.519212394625496
2009	1.1473570096456371
2010	1.7631941216840008
2011	1.7332664432068232
2012	1.6571746786650017
2013	1.896117132431167
2014	1.627303131117825
2015	2.8767845091488544
2016	2.5001055420221054
2017	1.9084209118937336
2018	1.1497313866575722
2019	1.568073933377545
2020	0.7307318531284542
2021	2.156524320596814
2022	1.5692443885344296