Year	% of GDP
1970	9.103045314874516
1971	9.80557382661944
1972	8.257810391179298
1973	8.418847103333787
1974	7.186858849865245
1975	7.687512516668773
1976	7.789461345007992
1977	8.078257039212387
1978	9.22138667852588
1979	15.279549805149145
1980	46.58965819094089
1981	35.68788595518403
1982	26.348053595617287
1983	25.999142135896076
1984	26.821636135076815
1985	18.763905588081066
1986	20.505581379419365
1987	25.000705361786522
1988	17.601036504026858
1989	40.748830895578365
1990	35.96231421463683
1991	30.674709254391836
1992	36.09386686391201
1993	37.875124945951534
1994	32.87287106657059
1995	8.870919191300729
1996	9.526116187319575
1997	10.151913302336919
1998	12.246530942061257
1999	12.29334530109772
2000	11.930546407193244
2001	14.509217337067126
2002	10.970243140894539
2003	13.724565685691466
2004	21.151025115403346
2005	19.327112696774197
2006	20.311268004062075
2007	26.33136612683955
2008	37.790872698113795
2009	37.15833587783248
2010	25.885894119487684
2011	24.686024811428965
2012	23.365728137154896
2013	19.75481035630086
2014	18.278150692396725
2015	18.95947253726797
2016	18.977255420842056
2017	18.139423993911908
2018	21.03202231969915
2019	21.247803915410316
2020	19.528157324094515
2021	23.16619818990567
2022	19.502239143010478
2023	20.29559381628035