Year	% of GDP
1961	1.6892058279417366
1962	1.6159447274115175
1963	1.6808518430589294
1964	1.766411934647571
1965	2.1932145105518894
1966	2.5102783355982212
1967	2.3184424144445575
1968	2.1329231260841217
1969	2.0871754686383057
1970	3.113325416970131
1971	2.389110812201229
1972	2.5361032741734744
1973	1.7017680542720885
1974	1.7219380621443656
1975	1.5228217306452905
1976	1.0018669435026462
1977	1.0530894129428816
1978	1.3674195372775837
1979	1.2765477378871126
1980	1.2155036848649243
1981	1.1168211321767674
1982	1.320289866317085
1983	1.2040511835047003
1984	0.7017224180534544
1985	0.8975395145512861
1986	0.8280420014211495
1987	1.1630608325290563
1988	1.0904269544642056
1989	9.681925781747518
1990	9.573309254046483
1991	9.661539373837906
1992	6.710456923138029
1993	7.4351479816203225
1994	6.679333488717887
1995	4.582838829809403
1996	2.1303451077719884
1997	2.4414276323893875
1998	2.96457636286491
1999	3.1929393140034747
2000	3.113873130714534
2001	3.7633726660389186
2002	4.611610014324947
2003	5.704111391638359
2004	6.572999677702759
2005	7.424554084611988
2006	9.324627771568181
2007	11.103394316057246
2008	11.65123069116214
2009	11.005840569501816
2010	11.504509265471231
2011	12.208798872805488
2012	12.729156108789457
2013	12.460705400836863
2014	13.226411616313346
2015	14.472044730652406
2016	13.559539962225461
2017	12.986433446225828
2018	12.632036840522204
2019	12.539719143406817
2020	12.35714793773747
2021	12.910515848877738
2022	15.101079652531679
2023	16.276813864475404