Year	% of GDP
1965	56.32054478203477
1966	53.982336064210656
1967	53.66170294808118
1968	53.93497419036704
1969	52.698055697659555
1970	52.59551007233277
1971	55.29225651070699
1972	53.11329996689975
1973	49.30080964717671
1974	48.3428098869547
1975	49.42566534621521
1976	49.456350902109456
1977	49.72615237710396
1978	50.740157833245966
1979	50.50270494429648
1980	48.94086914065021
1981	41.05885918947357
1982	42.18081062150651
1983	40.55921042488473
1984	40.09185559529534
1985	39.87050132903084
1986	41.24669073848543
1987	41.41192682825807
1988	40.759324222885645
1989	41.312867308337914
1990	41.39957909289905
1991	41.23996383798216
1992	41.5328317489828
1993	42.48924369534047
1994	41.834630427214265
1995	41.61585675644161
1996	41.05284295940089
1997	42.09019617230433
1998	43.67447268035428
1999	44.619822361418244
2000	45.80500266766398
2001	46.782951144227084
2002	46.85419954171898
2003	46.664802645773904
2004	46.70504896868484
2005	46.970889420415695
2006	47.05138688172361
2007	47.28224562589911
2008	47.745107094443675
2009	48.49710305300777
2010	47.40807015682734
2011	47.13017183025493
2012	48.20160561765529
2013	48.86200348367068
2014	49.75010734996474
2015	50.63890867207329
2016	50.707448269351815
2017	50.02350062455684
2018	50.00080390158937
2019	50.666569123748516
2020	49.558904253620035
2021	49.00427721763152
2022	49.558698147981104
2023	49.67799700100802