Year	% of GDP
1986	32.99710176372335
1987	35.040249215368114
1988	36.36946123720031
1989	35.803821703024134
1990	36.10223282130625
1991	37.68062347596901
1992	34.86823757279266
1993	32.552909153327626
1994	31.256558908466786
1995	31.390813306613524
1996	28.9294612635211
1997	29.168364349647263
1998	28.350047653223204
1999	26.696701198746016
2000	25.719363238425093
2001	25.061399811860856
2002	24.323893743193853
2003	24.161280906403963
2004	22.946516248958094
2005	22.82996052986602
2006	22.417855771607982
2007	22.741512652507552
2008	23.27063489956553
2009	23.91011703352358
2010	22.59575526347262
2011	21.6333657351929
2012	22.061455295122105
2013	20.934860822451775
2014	20.77122374560867
2015	20.645670036731417
2016	19.6870596203777
2017	19.44137797369505
2018	18.84805072385757
2019	18.60452955598417
2020	19.320697863296793
2021	18.602186290817688
2022	18.224522715959502
2023	18.05123489342092