Year	% of GDP
1960	2.29490883301967
1961	2.3466421816608096
1962	2.3074108771210198
1963	2.59035696447359
1964	2.88182674775756
1965	3.24952490444466
1966	3.8189953679917004
1967	4.45799176138232
1968	5.176363590903979
1969	5.9690541955316
1970	5.85690329096248
1971	3.04701247800352
1972	2.27537027764767
1973	1.8647054187635799
1974	8.75035024750824
1975	12.069192909255499
1976	11.2479723346227
1977	10.1898301489818
1978	11.1132050910914
1979	5.79724702809783
1980	5.34315018542368
1981	8.19038082342705
1982	7.906890638397381
1983	7.09708065005957
1984	6.354853844404
1985	6.51241844033205
1986	6.07933597523708
1987	5.88910778863281
1988	6.269777621033
1989	4.557980492689611
1990	2.94265012534759
1991	2.16970796657052
1992	1.7893054443735599
1993	1.7003612017497098
1994	2.07301000512615
1995	2.1541658849803897
1996	2.24486451064281
1997	2.49887472505777
1998	2.62907924769004
1999	2.40455173780106
2000	2.29504222152572
2001	2.41817929679324
2002	2.17457636612743
2003	2.4050402653569
2004	2.83455780463948
2005	3.0366544980481702
2006	3.31519380033441
2007	2.65398282115891
2008	2.6833419205563698
2009	3.04770554917662
2010	2.7865480606163997
2011	2.38163454250427
2012	2.68660846849974
2013	2.18077190909837
2014	2.11655706144949
2015	2.55709080686915
2016	2.79643556281004
2017	2.8443384495596002
2018	2.24343449628841
2019	2.00613630912015
2020	1.9713982636961997
2021	2.19253403937114
2022	2.5858676814208