Year	% of GDP
1981	14.986373619841013
1982	15.284538167163273
1983	14.69263751036592
1984	15.869530693502753
1985	17.0275917693764
1986	18.93865491079628
1987	19.34460923775613
1988	20.2568261478191
1989	19.722637375465784
1990	19.409535544416624
1991	20.181510160387784
1992	16.330424621743607
1993	16.53445454745888
1994	16.71976395018574
1995	17.718225673093553
1996	18.751183244597076
1997	19.421955607046453
1998	20.321543295595827
1999	16.194693927317775
2000	15.279331520024828
2001	16.29561798284897
2002	19.580218642789575
2003	17.135604832744068
2004	15.020376132646742
2005	14.884898608052927
2006	15.058987638644291
2007	15.587821815387029
2008	16.868377294579187
2009	17.18807224120697
2010	15.574596275270977
2011	14.515853436747092
2012	15.04062632430323
2013	15.088775336925714
2014	15.432004587477326
2015	16.261921794455237
2016	16.422833835656952
2017	15.906582121111992
2018	15.603852855983957
2019	16.238796421595815
2020	18.175647858949592
2021	16.977400151432885
2022	17.282466458077707
2023	17.223483019082423