Year	% of GDP
1989	23.200962158403428
1990	19.713362962408453
1991	19.5438300238979
1992	20.033951560287893
1993	21.19516841762758
1994	22.012676031050248
1995	18.96477323586898
1996	19.08841907969033
1997	20.322492354418255
1998	21.05071046958244
1999	19.857202916616977
2000	20.19994330378552
2001	19.456565348445075
2002	18.851527716049254
2003	18.557651398686424
2004	19.60597806832351
2005	19.58505601704864
2006	20.481388370746284
2007	21.739033616422194
2008	22.931011391908626
2009	20.35298302079143
2010	21.689124083376836
2011	22.186277217150348
2012	22.170087477164298
2013	22.053347437406604
2014	21.388169094919313
2015	20.1833804032714
2016	19.07701255649766
2017	18.715610746278603
2018	19.1810377280863
2019	18.76811793112539
2020	17.657207987640895
2021	20.32615513797716
2022	20.360240042711855
2023	19.660803021719815