Year	% of GDP
1960	1.8843234755299703
1961	2.1432563032116
1962	3.0994152046783596
1963	3.5151403758672997
1964	3.18080357142857
1965	3.1909469217231097
1966	3.1652447970439597
1967	3.1173645631477
1968	2.38537248109852
1969	2.05492415707552
1970	2.25954658431875
1971	3.3741740971197602
1972	1.96719582300512
1973	1.6902451061029802
1974	1.5757801352441199
1975	1.7402680753375601
1976	1.49360287072351
1977	1.43848721422287
1978	1.55031940977911
1979	1.67392876970441
1980	1.83012164926257
1981	1.7551203619179199
1982	1.71385095903576
1983	2.21993752742179
1984	2.32589496393177
1985	2.05401660934215
1986	1.9446195911584598
1987	1.98313541641877
1988	2.19924475548319
1989	2.18818380743982
1990	1.8601592995480702
1991	1.8534817831972399
1992	2.10667794255338
1993	2.52526701829097
1994	2.5084070134704697
1995	2.83162658057701
1996	4.44539325396431
1997	2.80178788575936
1998	3.4409857420470797
1999	3.7627420578629596
2000	3.03168353865852
2001	3.32387281880532
2002	3.41712762358197
2003	3.46398869081496
2004	3.46501517406307
2005	3.37467969392646
2006	3.2958249913522897
2007	3.2863017094944498
2008	3.73724698565115
2009	3.8869638370635298
2010	3.63691504613462
2011	3.07710698906549
2012	3.1560058634042902
2013	3.27226285651869
2014	3.10825884811044
2015	3.10996008410671
2016	3.07113102611539
2017	3.2080967243943603
2018	3.0332327385044
2019	3.14565669372153
2020	3.53352644737909
2021	3.23758910406394
2022	3.07910775361056