Year	% of GDP
1989	25.395355132724934
1990	21.367721235691796
1991	19.60328685334338
1992	18.68833156464461
1993	19.60279565777916
1994	20.243674894288084
1995	18.418597469667404
1996	18.69161180591149
1997	18.834305061089257
1998	19.02340770066489
1999	19.33188839431816
2000	19.709658089776635
2001	19.43979231817763
2002	20.34363714382285
2003	20.136224347268463
2004	21.964037727661616
2005	21.70668309530754
2006	22.80757735413831
2007	22.764197259424204
2008	22.362121765702174
2009	19.961786326751888
2010	21.414815557989062
2011	21.464438295242495
2012	20.725695847449856
2013	19.478348594999158
2014	17.86479177445314
2015	17.93546155063487
2016	17.82602823228407
2017	17.801232878209408
2018	18.088998987625104
2019	18.04569423367687
2020	18.45683030567877
2021	19.601187854348296
2022	18.30658860745061
2023	17.88516783048511