Year	% of GDP
1960	88.8676742030062
1961	93.27598407722468
1962	91.65143130770912
1963	90.18505101372016
1964	89.1824343402228
1965	88.10991957104558
1966	90.31327219016212
1967	89.01790347690711
1968	88.9821812141347
1969	86.26007900860436
1970	85.45677039108935
1971	84.82796236534703
1972	85.36945812807882
1973	84.40630363551256
1974	80.1768038163387
1975	85.48515558485073
1976	89.61658324676552
1977	87.91583770422619
1978	88.26322660187837
1979	88.36178134519608
1980	78.31671330045626
1981	80.37474992625626
1982	78.70227572623868
1983	80.75613701445803
1984	77.9814558307359
1985	77.61067790144412
1986	79.03373249504072
1987	79.57800079027187
1988	75.70071008223826
1989	74.97032918066907
1990	74.44775183006384
1991	77.81959891315493
1992	78.20863835484364
1993	79.07275809351543
1994	79.76907785551492
1995	80.97464327241569
1996	78.95215291932467
1997	78.3802551469045
1998	68.49819014757128
1999	70.04773817315912
2000	71.56883640718351
2001	67.86597184393536
2002	67.7258271571697
2003	66.64863487428396
2004	67.14112892486119
2005	68.63068928854152
2006	67.91680998076714
2007	68.59633670496935
2008	68.22806225594927
2009	70.58797699230249
2010	70.89086157625808
2011	72.05841924232465
2012	73.73951305488188
2013	73.6450817831052
2014	80.85333924473815
2015	77.11977991297807
2016	77.69547881697858
2017	77.30236444583709
2018	77.45844547985044
2019	77.21706741859407
2020	78.47861605914912
2021	78.73309343883044
2022	81.19253502215527
2023	80.31172223262068