Year	% of GDP
1972	20.39868004579433
1973	19.452027298273787
1974	20.299194857691923
1975	22.072836993895166
1976	22.577626337764553
1977	22.96498030206958
1978	23.047269127529553
1979	22.214549772212443
1980	22.70228508602502
1981	23.641686028958112
1982	23.802293909255816
1983	24.21810656135831
1984	23.572438063326565
1985	25.0939510393002
1986	25.44055016540996
1987	26.162463812147944
1988	25.622358059228766
1989	24.72364401602064
1990	24.432226738655036
1991	24.206336785281746
1992	22.70483921648306
1993	22.007964504154465
1994	22.21572144677258
1995	23.03820137704045
1996	23.648266722624577
1997	24.175940646528883
1998	24.104948747539204
1999	25.092512628516566
2000	25.883466078343197
2001	27.053499990104633
2002	25.975152225010113
2003	26.58347320659239
2004	26.54668674175924
2005	26.99661351008491
2006	26.94038025780699
2007	26.39117814775262
2008	26.590648415730712
2009	24.478195967944597
2010	23.297410802518588
2011	22.70614830567913
2012	23.433023376055733
2013	24.45030553938515
2014	24.357830711479377
2015	24.50014863980728
2016	24.847794007725437
2017	24.817293384366522
2018	25.80860794739901
2019	26.040003240955834
2020	25.245062224188473
2021	25.655356572666683
2022	26.172574308220263