Year	% of GDP
1966	58.00977853390427
1967	58.2782486788346
1968	56.85697235681576
1969	55.27052363104181
1970	55.124439339573925
1971	53.7458008483158
1972	51.26816072897127
1973	52.39616350994378
1974	52.76571814647901
1975	53.89204778505948
1976	55.02297751361447
1977	55.359866569472835
1978	54.61817650932074
1979	54.3531204331132
1980	54.058331707838356
1981	54.30697012358217
1982	53.1290813587203
1983	52.4436185034716
1984	52.589893688081226
1985	52.53533734750043
1986	52.88290044137079
1987	51.62494540352823
1988	50.76559343512673
1989	50.52122664293746
1990	49.73888716935314
1991	49.92182590134377
1992	49.99059516075778
1993	49.7935902079426
1994	50.93808732080423
1995	50.55219573966143
1996	50.16739594199662
1997	49.94157675338907
1998	50.141726528972576
1999	48.74657620200043
2000	47.06408401143834
2001	46.709466548455
2002	46.9359078735438
2003	47.24513702177142
2004	47.72566800459291
2005	47.79036930740614
2006	47.404813100949724
2007	47.4869862718368
2008	47.391653688635124
2009	48.479554251522295
2010	47.61223059212801
2011	47.91388314543152
2012	48.04213166914787
2013	47.69420570302543
2014	47.16096222396855
2015	47.111465671211754
2016	46.672960452420064
2017	46.35949146691277
2018	46.98074828465856
2019	46.94924926994516
2020	46.27105707247408
2021	45.31794764525255
2022	43.24690548231147
2023	45.791328093578834