Year	% of GDP
1970	26.619246353722332
1971	26.250155609263796
1972	26.535987894717366
1973	27.980678851376755
1974	27.925933754967737
1975	24.82437811007763
1976	25.800840127421193
1977	25.971336673474667
1978	26.323171943492074
1979	27.046258908979304
1980	26.305344226492544
1981	25.629359534589412
1982	24.245988284329474
1983	23.905843358378227
1984	25.24376564671991
1985	24.85233214444027
1986	24.867788405006518
1987	25.10767367241746
1988	25.958125935728564
1989	26.277605669090132
1990	25.798555168853703
1991	24.974571008800787
1992	24.250321452825833
1993	23.649192876956434
1994	24.04742261270894
1995	24.28361694342952
1996	24.178881091921657
1997	24.098990074765304
1998	23.848408749778592
1999	23.964375675166256
2000	24.447790346228498
2001	23.3128053224872
2002	22.486734817399267
2003	22.432776568806442
2004	22.864411475916995
2005	23.346887585995223
2006	23.7991235938199
2007	23.725242568556084
2008	23.148882832199156
2009	20.079194360086934
2010	20.871695343777375
2011	21.430332054522847
2012	21.37407483177444
2013	21.38801161551577
2014	21.70958577220474
2015	21.925470817855512
2016	21.699684235497678
2017	22.16612305564925
2018	22.52039680718162
2019	22.526396796199393
2020	22.286621635218477
2021	22.734689984126156
2022	23.31726002716422