Year	% of GDP
1960	6.155281470472972
1961	6.56514590048538
1962	7.205450382988345
1963	8.092225614962407
1964	8.478058204235033
1965	8.497907472645887
1966	8.56545973712399
1967	8.979912349139626
1968	9.030218650434676
1969	8.815613782302481
1970	7.3073389682344505
1971	9.183721277582013
1972	9.432851179187386
1973	10.084076279549238
1974	9.182653180357061
1975	11.465630966940457
1976	11.631377414904476
1977	13.950999056703516
1978	16.3546673656095
1979	16.0579885300174
1980	16.749559105807307
1981	9.306320204987095
1982	9.995103963937796
1983	10.919608257323025
1984	10.94827935100383
1985	10.88232053175854
1986	14.232471213517936
1987	14.84357310851014
1988	13.76081841826788
1989	12.91248550267147
1990	12.594482524965473
1991	11.709316482821839
1992	11.634555717491377
1993	9.939500230544773
1994	8.321876651999396
1995	7.269409978770172
1996	6.725622762419956
1997	7.3673850311474
1998	7.901013837547169
1999	8.564866644055881
2000	8.570976397428232
2001	9.23413322814635
2002	8.341040503452517
2003	8.970221259854002
2004	8.696870407247486
2005	8.726299924004845
2006	8.552956629113813
2007	12.175534223809613
2008	15.285230663035733
2009	16.482961531058052
2010	13.05102983237587
2011	11.90817816304929
2012	11.663576912590576
2013	12.617874774889522
2014	14.02638370265303
2015	14.489809624595239
2016	15.901866909708046
2017	14.932076869310645
2018	13.284750271074307
2019	13.2537122968015
2020	13.909583128040136
2021	14.732462308874348
2022	15.272506312735388