Year	% of GDP
1977	60.48776427501249
1978	62.88304487899903
1979	63.1019072197394
1980	59.65159056481281
1981	64.58333333333334
1982	65.59459226728667
1983	66.72493178717599
1984	67.53183337715508
1985	69.88522621113039
1986	66.06206603372537
1987	64.69968916073398
1988	61.959808694533216
1989	62.89534436321663
1990	62.35254006137061
1991	67.47556510932723
1992	67.26830536733101
1993	67.72404302524785
1994	70.46164656870741
1995	67.36451601469737
1996	67.54838351910387
1997	67.89969520642838
1998	67.2748026621266
1999	66.04663037630732
2000	66.93539879026586
2001	63.44757901543934
2002	63.83659188816362
2003	65.90683141599204
2004	67.946778895684
2005	68.82263359166132
2006	62.436203963400615
2007	64.15019316844611
2008	65.09771133610755
2009	65.72759712406963
2010	65.80231529483387
2011	64.89313163082238
2012	67.68497619507029
2013	67.07969621796445
2014	64.77535301668806
2015	63.87192880634552
2016	62.849239077254715
2017	61.92323325764584
2018	63.35028279686791
2019	62.83644411458907
2020	64.1840450182059
2021	64.85842952533774
2022	65.0977787505755
2023	64.86853081376431