Year	% of GDP
1989	23.288182223318714
1990	19.639576983986103
1991	19.76804150062313
1992	20.404400491573536
1993	21.566506292551377
1994	22.436576805461534
1995	19.210449457516397
1996	19.163799651268075
1997	20.41808244399494
1998	21.228309289225784
1999	19.928644998124394
2000	20.305647325881438
2001	19.627536368959177
2002	19.111552477644697
2003	18.847487077300944
2004	19.94432429579714
2005	19.86028806403242
2006	20.760064639049883
2007	22.085491836025188
2008	23.247532968483554
2009	20.696504324079847
2010	22.04365668025079
2011	22.530163296188345
2012	22.516887247993864
2013	22.40469911711974
2014	21.749781825439815
2015	20.61112518506822
2016	19.485714270812036
2017	19.05890265292072
2018	19.371570729716407
2019	18.964998172440854
2020	17.999813592464868
2021	20.730556036593008
2022	20.70593596184002
2023	19.974069109781144