Year	% of GDP
1960	77.03897381304151
1961	73.6967700174994
1962	72.40004112219405
1963	74.11725819666786
1964	75.48915520324203
1965	78.52615102323274
1966	74.41470359176866
1967	74.34558202927163
1968	74.25634568545743
1969	72.84847713032948
1970	73.64242696428622
1971	72.10312759295758
1972	69.96397185910077
1973	68.13547913745298
1974	73.94538370230396
1975	71.62324644218396
1976	66.34777225328406
1977	65.21437077659104
1978	67.60206643729472
1979	66.90444130467307
1980	65.54588031936085
1981	60.14374048736977
1982	57.83984674122576
1983	61.4633373029989
1984	61.245352304661836
1985	60.11242937796016
1986	58.55357688175772
1987	62.02259558983234
1988	61.700655453092956
1989	60.323185118382796
1990	61.42193551891477
1991	73.03267796163671
1992	72.98918186992022
1993	73.477306972886
1994	72.15935646155084
1995	71.0474173805981
1996	73.2197703436949
1997	71.71664834469301
1998	68.72031668954885
1999	68.0559742710561
2000	66.24976268508001
2001	65.4238122162692
2002	67.38949029476012
2003	68.52176522107118
2004	67.93479235799734
2005	69.8165922484688
2006	68.93580182673192
2007	69.2002838961609
2008	70.60037657845196
2009	66.29366595610594
2010	65.39863782608977
2011	66.68418893501848
2012	67.10166141280938
2013	66.16246256511269
2014	66.23095494619155
2015	64.9482778517656
2016	64.0606655180768
2017	65.1235385563006
2018	64.90272600631968
2019	64.29460072154592
2020	62.459104196156225
2021	63.316345385765175
2022	64.85969368410727
2023	65.43581516028908