Year	% of GDP
1969	70.65903775863049
1970	70.80444316271722
1971	70.45150915805695
1972	70.22867630511746
1973	70.18306363828022
1974	68.75288551234146
1975	72.8358568654497
1976	73.3355079042183
1977	74.98517342382506
1978	75.72089287019762
1979	76.1237117789175
1980	75.52887232461596
1981	74.34335166859553
1982	74.90111110136725
1983	75.04993264058241
1984	72.6206368895352
1985	73.30146454945033
1986	72.83045695842509
1987	74.1428873884423
1988	72.6295701838598
1989	71.42612691398412
1990	71.10076988478201
1991	71.65278361613294
1992	71.99075043653878
1993	72.32964371363609
1994	71.8989491826428
1995	71.64835364910013
1996	71.39470438882843
1997	70.77789760626047
1998	70.92760496582507
1999	71.37503307832232
2000	70.88518540642069
2001	70.72368489315826
2002	72.15192651909558
2003	72.86363370449094
2004	71.9388005728472
2005	71.08841623357411
2006	70.38624847317405
2007	69.55747209974643
2008	69.14174642072442
2009	71.69428431507485
2010	71.69310389604294
2011	71.42593552176567
2012	71.53695598239418
2013	71.27833050450971
2014	70.98531776758593
2015	70.02382581071524
2016	69.30077067836355
2017	68.6520010946344
2018	68.4986957145275
2019	68.09883710204106
2020	68.17433116141262
2021	67.21315618082971
2022	67.97492877255101
2023	68.8016277176173