Year	% of GDP
1975	3.245221523454913
1976	3.4917151542753087
1977	2.8905190885761316
1978	28.120555577842676
1979	2.813573237642323
1980	2.383665501474431
1981	2.229390020431304
1982	2.118097381966183
1983	2.118869191217649
1984	2.1853092052003342
1985	6.631753730093661
1986	6.721150807979114
1987	6.393476343913118
1988	7.52239789562897
1989	18.22801785889981
1990	15.811134570843189
1991	13.94287212856042
1992	10.123995104878514
1993	13.782003612821134
1994	14.159596938479421
1995	12.702272689207076
1996	13.451832400501191
1997	17.303444576347992
1998	1.1913227979846457
1999	15.199797315050247
2000	15.173235757928316
2001	12.761129336023135
2002	15.661816218232207
2003	21.550946523173952
2004	29.11728914890442
2005	39.94133380468802
2006	57.324334816781594
2007	60.75466494942323
2008	17.657298511224873
2009	28.394172877545543
2010	32.12846231328518
2011	19.752707892104333
2012	25.900417595341636
2013	27.35329552479903
2014	21.869329144843423
2015	25.15356994098139
2016	30.56223193947091
2017	36.10352637284784
2018	25.67126719151029
2019	29.936880526318827
2020	30.360523474500383
2021	33.98507322633255
2022	26.128062296123932