Year	% of GDP
1980	14.850713976633493
1981	18.278904194397153
1982	12.782798379557494
1983	12.54197537444699
1984	12.15607254075838
1985	9.718212613140315
1986	9.250760649087221
1987	10.101460263916435
1988	5.3549043350223755
1989	8.502974746513907
1990	13.005915475779073
1991	10.908869914005287
1992	8.369774228410058
1993	7.748114260567819
1994	8.663770456903475
1995	5.572866056262423
1996	11.036004345709996
1997	-2.424357900463637
1998	5.313475255557975
1999	0.2928697760378371
2000	1.09681037230364
2001	10.347983717978144
2002	10.978592671123941
2003	10.878125306097699
2004	9.992712722172804
2005	10.991935920413967
2006	10.025022577613777
2007	9.147875714298765
2008	8.847354564737252
2009	9.56645825646055
2010	30.714272342510014
2011	41.6835307571527
2012	24.803991068884088
2013	14.449295076447587
2014	13.109713448573283
2015	15.445104064480219
2016	18.000175335447373
2017	18.079010988758927
2018	13.060928674439282
2019	12.084931546008637
2020	11.6736844482628
2021	10.767578051426877
2022	11.321476381717344
2023	11.450325251330574