Year	% of GDP
1988	17.660701133635417
1989	18.829864502571006
1990	19.920066913633214
1991	24.36798141284505
1992	22.120216466950136
1993	13.837319747862878
1994	10.200569479645797
1995	26.089583221977104
1996	28.13042639398032
1997	24.52875606414102
1998	26.0044129085512
1999	27.698039102434517
2000	8.322396005311038
2001	8.048111819208927
2002	9.495958322221865
2003	16.67925855878532
2004	11.407657292367453
2005	9.81592773095545
2006	14.352771225123572
2007	9.224667532595936
2008	12.617162071856946
2009	12.60692422432995
2010	24.988217664925017
2011	20.99674948297159
2012	17.50923441646265
2013	17.880859322137038
2014	16.556866327765018
2015	13.973728646331422
2016	13.592227886418806
2017	16.876979845919017
2018	16.051092003906422
2019	18.536250020229758
2020	22.765656801691946
2021	18.1059819549396
2022	15.862139420419593
2023	13.853683667216925