Year	% of GDP
1965	12.904162988691482
1966	10.278757472507285
1967	9.980386316654123
1968	9.721276985371814
1969	9.185809648385412
1970	9.637560964104802
1971	10.865882384339923
1972	10.98486987183699
1973	11.952522488108624
1974	10.230837748865143
1975	6.5839104917192985
1976	8.152170711979313
1977	8.087142113968804
1978	7.504427477802898
1979	7.796277359391324
1980	6.3535050048790325
1981	6.475522960634391
1982	9.596156046218967
1983	8.65832496118367
1984	8.345976837101098
1985	7.634307257304431
1986	7.800402640197915
1987	8.094358464446284
1988	8.977868217752247
1989	9.616065096431662
1990	8.123676207874885
1991	6.716491760094313
1992	5.990787091479338
1993	5.136826482117787
1994	5.082668000310752
1995	5.351464616272997
1996	5.610866113233614
1997	5.22197210944516
1998	5.252722569876225
1999	4.457826102291524
2000	4.679910944172974
2001	4.5685896089178595
2002	10.206646714441103
2003	10.328166939116995
2004	8.362486610028256
2005	7.9387542742093835
2006	6.935572291263924
2007	7.4523539460692305
2008	7.318954597243597
2009	5.273623468901396
2010	7.1321674507896375
2011	6.9987337702251935
2012	5.781744206850099
2013	6.052918436704514
2014	6.712703514285585
2015	5.156685902140803
2016	6.2645658201025425
2017	5.231622377250584
2018	4.5378788968114625
2019	5.318555996734804
2020	6.3570336757552655
2021	7.306308855227615
2022	6.639898278402027
2023	6.059508762624492