Year	% of GDP
1964	2.6692233121618925
1965	2.594072395491681
1966	2.5075294962836066
1967	3.0395487468752003
1968	3.1434809731752966
1969	2.352340323259028
1970	3.3697284724870635
1971	4.288613568254858
1972	4.463450549654093
1973	4.777233515772878
1974	9.097629599661634
1975	2.854367819212312
1976	3.7623204294180312
1977	3.0887897691068265
1978	6.024548299991078
1979	7.250581117136459
1980	6.755751104796835
1981	9.648543471131994
1982	8.13850202873122
1983	6.90367382622345
1984	3.8580531602508232
1985	3.466795397396085
1986	4.362723303766008
1987	4.241581070641756
1988	5.816443368166144
1989	6.867202661491545
1990	8.478063524484469
1991	10.61845793730946
1992	10.57712785180064
1993	13.846643373953304
1994	14.556543664342636
1995	11.670902530121039
1996	13.639528696313189
1997	11.52730455075846
1998	13.23048475762119
1999	15.235946420729029
2000	16.94813875137193
2001	16.139257626314716
2002	20.12626961670989
2003	19.946930704077243
2004	17.170431029224332
2005	14.358995368485171
2006	15.650431330635929
2007	14.561483501916195
2008	13.459272193179043
2009	14.432110477301258
2010	18.17511626130976
2011	21.340576137758934
2012	19.96351598908807
2013	19.124410388957713
2014	19.004205257874613
2015	16.082018323578275
2016	16.848676390378717
2017	15.05013611499438
2018	17.587190656175057
2019	20.263975236864564
2020	23.153871945773545
2021	34.67020685959473
2022	41.63883623890593
2023	47.865673346817225