Year	% of GDP
1982	10.266745327064562
1984	15.0535547879209
1985	13.10109482673219
1986	14.037373794870778
1988	21.94429867752588
1989	19.043451265584817
1990	17.72520640421597
1991	17.8668257968199
1992	17.80967040208804
1993	21.048715382561998
1994	19.232241059383473
1995	19.015319211231567
1996	19.03779396960226
1997	18.43307495182085
1998	20.430723746007452
1999	20.768340659137785
2000	21.800822717004937
2001	20.9298745763635
2002	18.549249574430103
2003	15.628483524837241
2004	15.01677398086046
2005	15.987311420071931
2006	16.158843378463175
2007	19.417077518578242
2008	21.539132468182874
2009	21.800365687744154
2010	20.350760729748487
2011	19.214012439953297
2012	19.5787007615167
2013	18.77702825617755
2014	18.46884363272097
2015	18.246999631589077
2016	17.47688121669649
2017	17.65164052373888
2018	21.747879743400365
2019	18.833630498742608
2020	20.028483148576186