Year	% of GDP
1960	44.3100963408752
1961	44.07088437251868
1962	45.21521105757419
1963	47.52302062829463
1964	46.7089319673735
1965	47.099517670485696
1966	46.56956418841551
1967	45.46250454599782
1968	45.4322369338844
1969	44.51669266745639
1970	44.521718289199995
1971	45.212007268052
1972	45.73394827419184
1973	45.123509592878634
1974	45.35972997715739
1975	47.0479627772695
1976	46.09764167385281
1977	88.72432608504108
1978	43.19402823087486
1979	38.06884090079687
1991	58.381812995340944
1992	56.84587009588069
1993	54.82070294618111
1994	52.69073534931374
1995	52.91569310594281
1996	53.08098461719983
1997	53.02346599528743
1998	53.52059832949947
1999	54.00302603924432
2000	54.02748859256634
2001	54.51577026960395
2002	54.490868800307226
2003	53.959880002153305
2004	51.387895672011766
2005	49.836290473740675
2006	47.41706887701493
2007	47.30507080230096
2008	48.36342811132941
2009	50.73651643251827
2010	48.943577488579216
2011	47.75826605700467
2012	49.129259974297966
2013	50.515862211069326
2014	52.392898054701334
2015	54.04257994493859
2016	54.3063730182748
2017	53.928333156489416
2018	53.53819362810762
2019	54.391562027549135
2020	54.191060000142066
2021	48.71092237983561
2022	49.60759693186182