Year	% of GDP
1970	0.732777982692639
1971	0.7992278817282489
1972	0.6591230927199602
1973	0.5446635692748477
1974	0.5031358976861329
1975	0.19748269197621252
1976	0.21236045273761792
1977	0.18781370589759003
1978	0.22946787437974878
1979	0.2534985828500493
1980	0.29161975373481286
1981	0.46107349524113683
1982	0.29171401054965224
1983	0.29966299748451286
1984	0.16950711964727205
1985	0.24380429389189612
1986	0.18518579340452423
1987	0.318512006698107
1988	0.33405512043250357
1989	0.43723095860500855
1990	0.39227845533337524
1991	0.2071415764459969
1992	0.7614988814808392
1993	0.5909800251927605
1994	1.019884107556228
1995	0.7571785816801828
1996	1.822337535013965
1997	1.2542743766393802
1998	2.0946841883428493
1999	1.3691023040406565
2000	4.308900394697043
2001	2.880598392354656
2002	0.06452879826155725
2003	2.3620452552269864
2004	1.0560855161407332
2005	25.65582783078723
2006	3.1225333500468957
2007	17.69484601316176
2008	1.4584227409157147
2009	3.5593661354350417
2010	-5.610176314798762
2011	5.324236737149923
2012	1.2746939334871563
2013	0.10486218598524677
2014	0.38685811505406603
2015	-2.08805653898309
2016	-7.310916958037089
2017	3.239904979533655
2018	-6.2871015854224
2019	-2.7877057121615683
2020	-2.8578219906195526
2021	3.708869343935613
2022	2.14769868488775