Year	% of GDP
1990	18.125375939849626
1991	20.590702479338844
1992	18.556158310494922
1993	20.040745263766812
1994	18.100649350649352
1995	17.6607163887814
1996	17.233947401033443
1997	18.75673990483638
1998	19.26188142708775
1999	19.56315073664867
2000	16.930897742171602
2001	23.832277440341056
2002	20.752491482359492
2003	18.079302105741103
2004	17.40507005335024
2005	16.18495235810366
2006	16.51057221359455
2007	16.80312371778197
2008	18.583238930800935
2009	19.07568821721954
2010	18.290585781713073
2011	18.120322456946138
2012	18.648048116253808
2013	17.504796858281978
2014	17.112337978625213
2015	16.976352257967562
2016	15.430022108457536
2017	14.920741749796958
2018	14.283725589291821
2019	13.99745626787434
2020	16.73873416208463
2021	15.830665780147921
2022	15.35782633435474
2023	16.7861234268883