Year	% of GDP
1989	20.990604064159594
1990	21.633432747100212
1991	18.71924381055031
1992	16.543101965054323
1993	19.890745287156168
1994	18.565706293107073
1995	17.59565387402573
1996	17.638442558054575
1997	18.60989747548999
1998	16.153908512608776
1999	15.659781775021495
2000	15.247282174809804
2001	16.369608377630822
2002	16.714740179061792
2003	16.6678128109194
2004	15.951025663435612
2005	15.869822991896603
2006	16.199330120648124
2007	16.210698542692796
2008	16.53875654909882
2009	18.283123426412548
2010	17.196000326313374
2011	16.16989520015146
2012	16.50217588250451
2013	16.745190679666162
2014	16.388206095551052
2015	16.038343578141323
2016	16.610021997391023
2017	16.52481669073676
2018	16.39713046584797
2019	16.853508446140204
2020	18.132857234117413
2021	16.379901159542904
2022	16.57417374762849
2023	17.485817105651137