Year	% of GDP
1961	1.20346398630851
1962	1.15869999293218
1963	1.32641201559317
1968	1.35015218468453
1969	1.31822489730177
1970	1.6122164500726102
1971	1.39158576575288
1972	1.59554189417413
1973	1.6226362094444402
1974	1.8366540975122698
1975	2.37123711512529
1976	2.36715657458444
1977	2.24749944085215
1978	2.59897009809179
1979	2.70846107783402
1980	3.17239989323544
1981	3.90220332170092
1982	1.9818473003102002
1983	1.49932070318929
1984	2.17084173606847
1985	2.01399252543919
1986	2.3455492283237698
1987	2.37726317649524
1988	2.0209813195780897
1989	2.15628869950008
1990	2.81588331884607
1991	2.6883248571772
1992	2.50611883346961
1993	1.91634980988593
1994	2.25030123424626
1995	2.09616225791141
1996	1.98680754250518
1997	2.27361030066829
1998	2.69111085956905
1999	2.13328709491197
2000	2.0629715134384
2001	2.3204467435097
2002	1.99033371462944
2003	2.14548339823865
2004	1.89650330503014
2005	1.717004422633
2006	1.46622698404757
2007	1.4890475837354
2008	1.96177660261488
2009	1.76136075631536
2010	1.7079050545417598
2011	1.6841226569035
2012	1.8456064391907698
2013	1.84124031434072
2014	1.8969150447766099
2015	1.75943591545646
2016	1.53046903660466
2017	1.5364256772845701
2018	1.49690260690561
2019	1.4512711273205
2020	1.39422069880527
2021	1.41111958813376
2022	1.48373193294262