Year	% of GDP
1960	86.22472303358627
1961	86.8352922913092
1962	81.75784461221728
1963	84.87560554555343
1964	83.7577591192366
1981	80.76976547388782
1982	80.7867495939383
1983	83.64209555176856
1984	88.87829504398324
1985	81.45497799699261
1986	80.58758061972901
1987	81.75837947849222
1988	82.05591698672922
1989	80.56279244457963
1990	80.04046037292709
1991	81.29048935974652
1992	81.68436743800103
1993	82.74687769731295
1994	82.01298942657719
1995	82.2433238502068
1996	78.85211342502161
1997	77.95699290108115
1998	76.23860936791493
1999	76.2326634048507
2000	75.00810045608361
2001	74.52283781325406
2002	74.13841270406935
2003	74.68607907322055
2004	73.63770369481391
2005	73.7640610844816
2006	73.12330820718712
2007	73.8931599871735
2008	75.63231107545275
2009	74.57384125559979
2010	74.11465031352084
2011	74.28046964672873
2012	73.73689485126553
2013	72.84777398170495
2014	72.57253691817006
2015	72.43728948029701
2016	66.8644422199967
2017	66.91191680686615
2018	67.58965176483407
2019	66.87742901445858
2020	66.95119025592867
2021	68.77543351271582
2022	69.0766062753121
2023	68.57531629315726