Year	% of GDP
1969	53.50865029078622
1970	53.354990128112824
1971	52.06593047646408
1972	51.27160929394966
1973	51.15897124009866
1974	49.292840885088395
1975	51.43561395640243
1976	51.901848755027004
1977	52.98404506719277
1978	53.32150844805086
1979	52.95569156578299
1980	52.51140000065203
1981	51.27147188719816
1982	51.341404351090716
1983	51.62173830607999
1984	50.60116421819267
1985	50.97628819603792
1986	50.580397561190615
1987	50.95264159162398
1988	50.026467222518
1989	49.5924885171371
1990	49.439249309968396
1991	49.79298313682761
1992	49.596716831770514
1993	49.66220174391304
1994	49.41245293608932
1995	49.22241743969752
1996	50.020166848023216
1997	49.7867474515372
1998	50.100051991529185
1999	50.78112521128406
2000	50.33019400142034
2001	49.73095017234546
2002	50.02883443050503
2003	49.96275423646185
2004	49.43130934882086
2005	48.80873071051385
2006	47.19714102910635
2007	46.32298076457192
2008	45.64800880101607
2009	45.69667211871161
2010	45.449766656706096
2011	45.63925462705982
2012	45.51033285040875
2013	45.48945209648383
2014	45.30406813985348
2015	45.04527483739319
2016	44.61732198092151
2017	44.33553795590574
2018	44.12994016695371
2019	43.48377416041965
2020	42.118940906180555
2021	41.455937200991976
2022	42.884922940819926
2023	43.50440872422603