Year	% of GDP
1960	78.5932004689228
1961	78.43873930226596
1962	77.89771721747596
1963	78.02426343187307
1964	77.21249047923602
1965	73.52861257654874
1966	71.28614916271802
1967	71.35740241505509
1968	71.77719506035035
1969	71.41732627736212
1970	70.11085483184377
1971	71.26611486961747
1972	75.243825990816
1973	80.7909156223146
1974	62.42535507572714
1975	73.18375011294563
1976	68.90895851598721
1977	72.80363257523915
1978	71.10208561150088
1979	70.74491591357462
1980	70.6913032833411
1981	75.20180332147288
1982	75.17055894092277
1983	71.65343255662194
1984	69.72141182483641
1985	67.58934414120753
1986	65.47555297158524
1987	64.00482672103685
1988	59.90920057687116
1989	60.132213194764496
1990	61.86310664966227
1991	63.31043202575027
1992	65.15272065393354
1993	65.90710266030565
1994	64.63635626440372
1995	62.557198874954935
1996	60.83440485150662
1997	61.04638016952312
1998	63.122742959020805
1999	62.874702768884625
2000	62.12273391150467
2001	61.715832846146014
2002	61.112429508575005
2003	59.99414665640202
2004	57.84442424467174
2005	57.4900587964009
2006	53.496850801255526
2007	53.823342973315
2008	58.18963299683485
2009	56.666225654931644
2010	56.58804689469753
2011	58.14459463461189
2012	59.34768090711005
2013	60.6858177600604
2014	61.242402792502205
2015	61.77539583338927
2016	62.160086954759194
2017	62.078022140888436
2018	62.05940897118819
2019	61.66945343717379
2020	58.43751410649888
2021	62.09420981382719
2022	63.69383523525356
2023	60.63714042799473