Year	% of GDP
1978	5.873195876288659
1979	10.029770992366412
1980	11.42711288258969
1981	12.68779212482526
1982	11.98433194662696
1983	9.876904356720168
1984	12.919152717709823
1985	19.21430256860344
1986	20.080106268652415
1987	17.779514400607418
1988	19.103389459343862
1989	24.003609620465056
1990	15.74297156774856
1991	12.828235652173209
1992	9.901236442257428
1993	9.644631980983396
1994	8.765267586648815
1995	8.330161314512953
1996	7.787047745827142
1997	7.974981436212998
1998	8.729392684212009
1999	8.843385666001971
2000	9.936671749002505
2001	7.991052013065726
2002	8.21337792416106
2003	7.54969696969697
2004	7.399212081418254
2005	9.923444631275522
2006	13.948222269533744
2007	18.90988694289903
2008	21.15001496126351
2009	18.79346371455431
2010	16.05321934875052
2011	14.96338713328003
2012	14.518567880699743
2013	15.51215548621391
2014	17.225762301655788
2015	19.133265618207638
2016	20.25733296851629
2017	20.38071920502381
2018	19.146710277027502
2019	19.700445942269912
2020	20.713347198224618
2021	21.253905039171748
2022	20.503080480645036
2023	20.059766813803705