Year	% of GDP
1970	1.0940762146771852
1971	1.258311656810908
1972	1.4920258465703125
1973	2.1814669881870916
1974	8.720678965665643
1975	7.617246547819532
1976	8.355802671114825
1977	7.886809245271379
1978	7.8742852048467205
1979	11.889816242229609
1980	12.741781221986264
1981	9.14102463424359
1982	6.846067063594765
1983	7.339688024582333
1984	7.343454589237168
1985	6.975738315507709
1986	3.2460625003130623
1987	4.750196199311949
1988	3.920039685699782
1989	5.2446368706966595
1990	6.355331569978755
1991	2.9325685193898794
1992	2.852618318816125
1993	2.9872164658309344
1994	2.5194784780221267
1995	2.5191400849256116
1996	3.0461841159692695
1997	2.5975116735884622
1998	1.443157634709972
1999	2.615321587538601
2000	4.587894250896768
2001	3.469908582617568
2002	3.556876896624614
2003	3.6900064785917253
2004	4.506982090911824
2005	5.801979672880251
2006	5.8995942022159396
2007	5.179438201262035
2008	6.1795987162178365
2009	3.37484641714948
2010	3.7707934385707182
2011	4.7468301612207355
2012	4.435330450325478
2013	3.8331541012231933
2014	3.3631494222629503
2015	1.51947529942541
2016	1.2425054943485303
2017	1.6465525019410046
2018	2.2921903254203766
2019	1.8508258281073295
2020	0.9218692615226467
2021	1.8572407812944964