Year	% of GDP
1961	0.7265542676501581
1962	0.714213709677419
1963	0.7631318136769081
1964	0.780771017185323
1965	0.72264836495761
1966	0.692630775105002
1967	0.796946564885496
1968	0.8048691860465119
1969	0.8726579866624321
1970	0.9349845201238389
1971	0.8987378083763631
1972	0.953063518830804
1973	1.04246122552759
1974	1.21389702804521
1975	1.03020778767243
1976	1.0920945395273
1977	1.08841709217952
1978	0.999882366780379
1979	1.10765643218033
1980	1.44526179143228
1981	1.4161894443584602
1982	1.09068245559364
1983	1.02872981184372
1984	0.912254991756732
1985	0.733104238258877
1986	1.4743914807302199
1987	0.694642221431114
1988	0.854102900451829
1989	1.54290015052684
1990	1.3066466691906
1991	2.03645709213082
1992	2.6869106909300298
1993	2.0801210712463902
1994	1.9911688702369899
1995	1.96929162657653
1996	1.35295037022412
1997	0.764916648015189
1998	1.02470222872405
1999	1.74034004536642
2000	2.51215561780176
2001	2.74252734280679
2002	2.16461761611263
2003	2.05395298767045
2004	1.58494660921678
2005	1.42681393237049
2006	1.4863958478655201
2007	1.34699336114922
2008	0.9437062792445409
2009	1.07603322555112
2010	0.972150455134743
2011	0.865813493995693
2012	0.782800530642159
2013	0.643965907030134
2014	0.9732621063217061
2015	0.923453252284234
2016	1.1163823575070402
2017	1.0938168966116
2018	0.7519925687137661
2019	0.672477267518061
2020	0.546605434850038
2021	0.609065850522684
2022	0.5997929401790849