Year	% of GDP
1991	27.784048247914924
1995	35.66543001698993
1996	35.94576132857844
1997	35.71626280016383
1998	36.95880865932295
1999	37.02688326030401
2000	35.61535342567411
2001	35.91464016496679
2002	36.808763205390356
2003	37.90834612991022
2004	36.66153594627141
2005	36.885374342298185
2006	36.26393533346725
2007	35.49889676635273
2008	34.789021258546356
2009	32.183286002473956
2010	32.01475860319257
2011	31.924404310089127
2012	32.00218620384993
2013	32.38027649858956
2014	33.15716593806975
2015	31.176700934861906
2016	31.944852642842335
2017	29.95323050847644
2018	30.7658049724061
2019	30.214285283349927
2020	36.120269635131464