Year	% of GDP
1975	22.764979311535352
1976	21.960247982341492
1977	21.395028634179393
1978	22.021695236040166
1979	21.800002912625445
1980	23.367391798508617
1981	19.42522641996807
1982	16.92558030751593
1983	16.44292482277652
1984	20.561138437133305
1985	22.20577471041646
1986	24.049410539440323
1987	24.01571046145672
1988	23.740346198431762
1989	23.342283061218456
1990	22.866845570673167
1991	23.883468965744616
1992	27.227263114554486
1993	30.719616903180352
1994	34.59997605459552
1995	38.23634361155735
1996	36.13007287867602
1997	37.59527266293187
1998	43.39308495784156
1999	37.40857975322328
2000	38.15975455509613
2001	34.95891269090863
2002	31.83479886934904
2003	32.39705909209521
2004	34.46979901331101
2005	33.54864818955858
2006	35.956168527450885
2007	37.785373297454186
2008	41.46684871998178
2009	19.47749803422757
2010	29.640895215136204
2011	34.800801561756096
2012	25.163253695844563
2013	21.98775864254503
2014	20.9301459192706
2015	19.16017578935029
2016	19.943531550090317
2017	19.65890479901088
2018	26.163973132786406
2019	27.554156407128605
2020	22.293062976532994
2021	22.775240716701997
2022	27.955245771004016