Year	% of GDP
1990	19.085510061142134
1991	20.966000156499735
1992	18.94711170716872
1993	19.155060361771177
1994	20.457883165104178
1995	23.125962875953643
1996	23.867382711445398
1997	25.17543595284107
1998	26.133478567419726
1999	27.685945879580892
2000	27.415310843477275
2001	26.351142076808152
2002	24.572748758260303
2003	25.03112154736275
2004	26.015530732036034
2005	26.592949135081817
2006	27.745546195384406
2007	28.651234141283368
2008	29.442967667991237
2009	24.13061816398086
2010	21.081586690803785
2011	19.944423650033546
2012	19.03171664063867
2013	19.63359472247099
2014	19.107578800738434
2015	18.65459030185361
2016	17.379119470145017
2017	18.320373611247025
2018	19.333039790654663
2019	19.584697778967143
2020	18.90269899905456
2021	20.240719539582074
2022	21.616331569313022
2023	22.49786644634079