Year	% of GDP
1970	1.2838246528702655
1971	1.3423082505985322
1972	1.1869824865937448
1973	2.587214077834132
1974	2.122912936937275
1975	1.2412099579300693
1976	1.8648243995520457
1977	1.5863452278684287
1978	2.0290003777899157
1979	2.856317972812143
1980	1.9876118878233109
1981	2.247450456486463
1982	1.390731641000566
1983	1.6715210084214993
1984	1.7286132806215166
1985	2.167752298384622
1986	2.8295397078004205
1987	3.8817143770443154
1988	4.574775366208583
1989	3.385344613245815
1990	2.5598496021826813
1991	2.0604360383823854
1992	2.2168115457413533
1993	2.8662263616595496
1994	3.834558685274245
1995	4.203778364533408
1996	2.9383525903512164
1997	4.785577710488584
1998	9.552834101322409
1999	14.358416757329422
2000	17.534710247668716
2001	4.6921241438955725
2002	6.770452989186966
2003	3.995325308762012
2004	5.312341650805035
2005	6.287814588345654
2006	5.252280545027101
2007	11.984923261781939
2008	12.176378588719325
2009	-2.005848435497582
2010	2.1890096257533918
2011	3.0345156178440265
2012	0.4441500562415009
2013	1.6608021976783023
2014	-3.717004609824822
2015	-2.0552883449724066
2016	1.2237622872064156
2017	6.419193346862635
2018	-0.9971696417404542
2019	-0.7539541931682242
2020	0.6074721095173482
2021	5.122765159997551
2022	4.043244451816149