Year	% of GDP
1980	14.380477345930734
1981	16.243406165754514
1982	14.431020980846249
1983	12.744064507104477
1984	13.640363930279348
1985	15.81439791254067
1986	18.566241127626576
1987	24.557017906587635
1988	29.27041176295338
1989	29.237120723893522
1990	27.961671930665066
1991	33.45967531161316
1992	33.395099435265294
1993	32.85930283415496
1994	30.875962913691048
1995	39.40583072406147
1996	37.00682235210954
1997	37.30146975490241
1998	34.329679351819166
1999	32.65490901488023
2000	28.00141115907814
2001	25.24171375815435
2002	22.920231962015585
2003	24.3568394131845
2004	29.651840162411297
2005	36.40439429634515
2006	51.81293031166491
2007	52.35712696542238
2008	46.598977305102984
2009	42.46629308783997
2010	40.22058806867213
2011	38.69215125732436
2012	36.408684872254916
2013	38.03145618348755
2014	34.717049946150226
2015	32.01767978923279
2016	27.52878968013526
2017	28.446405615698446
2018	29.18971979917071
2019	31.457505901891924
2020	28.06563670175912
2021	29.198741712198178
2022	25.791651835506574