Year	% of GDP
1970	26.478887637359822
1971	26.080961843574542
1972	26.36904689256665
1973	27.762880121552026
1974	27.794980465641018
1975	24.76725973055085
1976	25.67431073662729
1977	25.864560624332057
1978	26.173540695301682
1979	26.872524926953155
1980	26.187705810490318
1981	25.53274100113722
1982	24.082697674073728
1983	23.739410065554896
1984	25.029533976496225
1985	24.67183506091257
1986	24.72814342693626
1987	25.02489340441067
1988	25.90083515861061
1989	26.211698163201653
1990	25.751333548106558
1991	24.911270049572117
1992	24.152514863846157
1993	23.575270745634874
1994	23.960818244347816
1995	24.14478455325694
1996	24.05830424288288
1997	23.963863749843533
1998	23.82184845541336
1999	23.881011649436786
2000	24.325202968572498
2001	23.159742410290434
2002	22.408952539283334
2003	22.41530920229447
2004	22.88447409324087
2005	23.3935539385329
2006	23.892421620997734
2007	23.845093276434003
2008	23.267938660857727
2009	20.1648405314409
2010	20.99859823767255
2011	21.682916216357388
2012	21.57398705868017
2013	21.549433363470616
2014	21.869828833830464
2015	22.140522047967227
2016	21.976608534137203
2017	22.410096742436597
2018	22.706531815133452
2019	22.8363708696042
2020	22.554366309648135
2021	22.918593187123314
2022	23.600817405449554