Year	% of GDP
1981	22.798443998488636
1982	23.597510439524665
1983	23.104194665127086
1984	24.329010285718823
1985	24.103705536560433
1986	23.529599770518068
1987	24.316825595220607
1988	25.25612144573906
1989	24.848143250012594
1990	24.0398625786402
1991	23.210427475841637
1992	23.665203614638788
1993	23.81677033523753
1994	24.51393339173163
1995	24.444847301570885
1996	25.164426260317686
1997	25.643594831649494
1998	25.41661320588867
1999	24.96548398294275
2000	25.47170525311731
2001	24.92868180849105
2002	24.740250035074634
2003	25.15176902320242
2004	26.369469904585564
2005	26.875654337569465
2006	28.03143824381637
2007	28.024920387471038
2008	27.190130538505475
2009	25.04308486789025
2010	26.334212513435894
2011	26.61353046072403
2012	26.662741703112967
2013	26.309340097915022
2014	26.608155621681167
2015	26.280549673838483
2016	25.79382387525393
2017	26.432944328484105
2018	26.61255005306114
2019	26.493192721600515
2020	25.83805790494049
2021	27.24569997511028
2022	27.159303345060387