Year	% of GDP
1960	39.05562224889956
1961	37.48757043420616
1962	38.34380978409401
1963	33.24975891996142
1964	29.849939164526155
1965	33.798412316574456
1966	36.09417503048494
1967	39.18239951278928
1968	39.24626380766731
1969	39.30040222352782
1970	39.930630050775946
1971	41.10820244328098
1972	41.32670993743703
1973	40.40309011633166
1974	40.85768500948767
1975	39.58230585378808
1976	39.18592117627549
1977	39.335020770524665
1978	39.04748653322467
1979	39.199995062078926
1980	42.84142771195038
1981	43.03641246793826
1982	43.62922568279493
1983	43.03548320287426
1984	43.05540180656129
1985	44.21176969852388
1986	44.80617716228839
1987	45.02283525256825
1988	44.76909093275304
1989	46.30745866450183
1990	46.486520985140324
1991	47.148623129802694
1992	48.508435516507845
1993	49.12226708881523
1994	49.15517966224368
1995	49.260553130881156
1996	50.278485788658024
1997	50.7585399162881
1998	52.19709863066074
1999	51.65035936921446
2000	51.61843819172223
2001	53.08394527859345
2002	53.607233364677
2003	53.871274772649926
2004	53.096982164574136
2005	53.87891642761099
2006	54.69918252906345
2007	55.07869333944655
2008	56.18724043539491
2009	55.99857203029466
2010	54.69835731014526
2011	54.64985025960857
2012	55.073204753465596
2013	55.21360302517472
2014	55.64499447159752
2015	55.57650557254905
2016	55.358639313098564
2017	54.84779033939239
2018	55.691693245458865
2019	57.24215056382752
2020	57.007521205206594
2021	56.821899448538204
2022	58.034015490704185
2023	58.42226999296257