Year	% of GDP
1960	74.34367541766109
1961	79.56028856063209
1962	80.64305532887221
1963	79.24258198854763
1964	79.50409185293759
1965	77.13812154696133
1966	77.94866465759118
1967	81.18213480844089
1968	80.10789602746445
1969	76.20788019254769
1970	78.25682644348635
1971	77.81551524507913
1972	79.82419127988749
1973	70.72584521711264
1974	71.27482719398023
1975	76.1687264911338
1976	67.70874132098984
1977	68.6456400742115
1978	67.76645726653645
1979	62.21135619507151
1980	67.0762362122008
1981	71.19747279259889
1982	71.39890413584882
1983	67.39111918687183
1984	64.53174104336895
1985	67.28669162256358
1986	67.91909936586865
1987	63.04865264845533
1988	63.4318501678034
1989	64.06450448053367
1990	65.59652673390381
1991	65.86912761611556
1992	63.280949283922425
1993	60.9161759410897
1994	60.40130767774645
1995	60.294957140866536
1996	57.13587564832186
1997	56.11313188665519
1998	51.32977690534276
1999	52.56613158489712
2000	53.919601796852426
2001	58.16171694854203
2002	57.96802300548259
2003	57.54485169628124
2004	56.57781490481977
2005	55.660089260418935
2006	55.50266092924744
2007	56.71942164908167
2008	56.21099579322786
2009	61.88969176146127
2010	60.697755388747
2011	61.238652105386116
2012	63.49330554789076
2013	65.52590088100104
2014	65.74762549900899
2015	67.048427458933
2016	67.35260711779787
2017	67.5843449032434
2018	69.395262701878
2019	71.4247879477463
2020	73.97430246911185
2021	70.66402305386109
2022	69.25730908587222
2023	72.4776381801011