Year	% of GDP
1979	8.350781291003663
1980	6.677353119464849
1981	6.165475044178113
1982	6.920559272691316
1983	5.752918905999077
1984	5.767310172079673
1985	6.426040054504907
1986	7.338794954588853
1987	7.444737833089253
1988	7.745382432513971
1989	5.439235963294918
1990	5.800672857704268
1991	5.6194650473626355
1992	5.811579012874479
1993	5.351443141631714
1994	4.920715297157361
1995	4.770200037135603
1996	4.546142571360566
1997	4.900450459587105
1998	4.71509797933099
1999	5.22377586175105
2000	5.318634915157747
2001	5.3923883490414175
2002	5.985056412456863
2003	6.250627097754633
2004	6.155263869355128
2005	6.033425646299966
2006	5.8149622920081345
2007	5.836418988861951
2008	5.9000243892099915
2009	5.87169753203463
2010	5.584339543767539
2011	5.512626077730469
2012	5.900667506304444
2013	6.071157244588167
2014	6.373412091422247
2015	7.075116251723167
2016	7.242465820415957
2017	7.028538102841106
2018	7.507616869871536
2019	7.619568382062204
2020	6.278372363132392
2021	6.866338798110696
2022	7.967179213860715
2023	7.495498967844462