Year	% of GDP
1965	14.145658263305322
1966	10.042553191489361
1967	15.735815602836881
1968	9.68063872255489
1969	12.5
1970	10.770577933450088
1971	12.386457473162675
1972	12.322443181818182
1973	8.061915511125443
1974	14.830178895514647
1975	6.928194540032118
1976	7.475317348377997
1977	7.633256083429895
1978	9.681881051175658
1979	6.269720101781171
1980	7.142243969439437
1981	5.508767085461825
1982	5.629961820495728
1983	6.151348930930259
1984	5.115986804210086
1985	4.917284075915965
1986	5.101539834858291
1987	5.89058468535444
1988	5.856315968675519
1989	5.471036899608327
1990	6.881315417768281
1991	7.244759972954699
1992	6.841347219144693
1993	5.128205128205128
1994	4.427053450531292
1995	3.686342715337137
1996	3.229090316801043
1997	2.886730383664571
1998	2.5794145958857713
1999	2.0057802467853865
2000	2.0154366779468886
2001	1.9532661816238979
2002	2.1916396820724167
2003	2.466556918948082
2004	2.4978679751325563
2005	2.758357981536255
2006	2.5835097513910483
2007	2.5314681856025323
2008	2.8773002827151473
2009	3.2367098820265907
2010	3.575191093942845
2011	3.5050032735436694
2012	3.3051192876993674
2013	3.583018644441767
2014	3.968444573723558
2015	4.392268658611509
2016	4.506341299983523
2017	4.442000427899414
2018	4.380843929446742
2019	4.371956514859006
2020	4.646574471645461
2021	4.786752777043907
2022	4.812944823999627
2023	4.803824755555287