Year	% of GDP
1987	38.983617576302706
1988	37.02982654868978
1989	34.54818385060737
1991	29.381527941642403
1992	29.98980961591299
1993	28.35209365534814
1994	32.83930038390033
1995	32.46973123825677
1996	29.950206879480177
1997	32.793445834824766
1998	39.52418540520463
1999	34.58916301690632
2000	33.80813306322392
2001	33.57051304327953
2002	34.522964663185704
2003	33.93099409238319
2004	32.211688764957344
2005	33.433426732382465
2006	36.42901682140005
2007	41.459824611882226
2008	46.48985429933688
2009	52.179639667743075
2010	42.541168808988466
2011	40.79616693169909
2012	40.054581110060724
2013	42.70843950828668
2014	38.32192181663959
2015	38.24404067808389
2016	40.58446277744035
2017	39.715342319129334
2018	39.24968417959462
2019	39.24634684874604
2020	43.296033967385135
2021	38.18995727539333
2022	41.382724944330164