Year	% of GDP
1969	21.54935526948997
1970	22.30269405845052
1971	21.86287901356358
1972	23.34264643835186
1973	24.550133379653264
1974	21.658733295943893
1975	31.954624543751713
1976	36.388575635399334
1977	37.50230387285978
1978	36.07673149675815
1979	25.941608616324995
1980	25.703170942970804
1981	29.39753882400902
1982	29.102579158775182
1983	31.735811559190452
1984	30.41877490729132
1985	27.200360396997613
1986	26.554871799334308
1987	22.68437442111216
1988	22.15842891652232
1989	23.989409805551823
1990	18.528262331790803
1991	22.962529395121376
1992	23.57847207638391
1993	24.424795140122164
1994	24.34648152191845
1995	23.46468426339293
1996	25.30359888760676
1997	24.67726933918437
1998	23.857251027751765
1999	22.209424723993745
2000	20.708700239362077
2001	23.274801289003268
2002	23.455429264070997
2003	23.900966797199384
2004	23.677821362979383
2005	23.4564538199065
2006	23.66262694489696
2007	24.104424222980544
2008	26.418870993910442
2009	26.343652644527786
2010	25.233892843020765
2011	24.997615841123274
2012	24.08316772965973
2013	23.637996200582027
2014	24.27238158761521
2015	23.60759897459396
2016	21.936430305251665
2017	21.989823976556018
2018	22.18008510040719
2019	22.78501043123383
2020	20.13855554123109
2021	20.487812156638626
2022	19.366580354552102
2023	22.693370767068593