Year	% of GDP
1981	16.742788220643867
1982	18.036414797679853
1983	18.415364389753528
1984	17.200929074119237
1985	16.40070327287884
1986	18.669528306987853
1987	16.417568106626707
1988	16.629380284760682
1989	15.515007482503517
1990	12.473836642774701
1991	11.8115698150791
1992	25.557106309353028
1993	25.70936523353072
1994	27.482613852165592
1995	32.54282457066312
1996	38.4770045574782
1997	32.23688384849516
1998	32.43336876369678
1999	31.697833066960857
2000	27.422530623153335
2001	22.96888750849987
2002	18.919125275033043
2003	18.439517205106846
2004	20.029776527185188
2005	19.797960491549826
2006	17.643670839540913
2007	18.427965388871282
2008	19.21512478253709
2009	17.864438070908474
2010	11.732563198012945
2011	10.3073568180221
2012	11.258024557212662
2013	13.41406246609017
2014	13.341221087949817
2015	14.079203180176004
2016	12.627843686447854
2017	11.137233271356777
2018	11.428004519305913
2019	11.558382861226647
2020	12.96565630314745
2021	13.163174192774166
2022	13.027853403536085
2023	10.192300838204286