Year	% of GDP
1989	15.820203310300737
1990	16.032272703191556
1991	15.138160081729682
1992	14.99050870668536
1993	13.496513779229687
1994	13.719230057631169
1995	15.177945129135132
1996	15.532652601345061
1997	15.556762515310247
1998	15.327634640379298
1999	17.831521658392116
2000	19.143192569520735
2001	18.929326821203503
2002	21.55597761342193
2003	22.92690951820198
2004	24.280135724229584
2005	23.96541183228057
2006	24.122564902599265
2007	23.09704967920235
2008	22.839489631991444
2009	19.476767662845884
2010	20.58778707431028
2011	21.267495462707053
2012	21.35918849021749
2013	20.72993428068948
2014	19.933326988736713
2015	20.98557464259034
2016	21.37100678028596
2017	21.265934437332817
2018	23.594528092098088
2019	23.836763060064154
2020	24.637968454432897
2021	27.088259414510034
2022	28.039230691923812
2023	25.175818845553