Year	% of GDP
1970	24.408021891241667
1971	23.82520374630299
1972	23.201807388250508
1973	27.21105427895259
1974	27.75999228876314
1975	23.95594835001922
1976	26.07828041714948
1977	25.448581715467856
1978	24.82750923425609
1979	24.979295972367616
1980	21.47293837439376
1981	19.369793931285653
1982	20.168303744055574
1983	21.092733459029542
1984	22.206908279674646
1985	22.019620669847423
1986	21.773842280611536
1987	22.718552081848387
1988	25.43783485872758
1989	26.07887088005197
1990	23.180752932157166
1991	19.774539713503486
1992	19.007512087715906
1993	18.54800913902681
1994	19.55785001529799
1995	18.68638073827985
1996	18.87695839418545
1997	17.73653379204011
1998	18.258269145449027
1999	18.070008281827523
2000	18.418681047138683
2001	18.29732099621772
2002	18.352597153526116
2003	17.93871897286412
2004	17.774264594140345
2005	17.99507988924389
2006	18.384036281672074
2007	18.644963185525143
2008	17.59425200803213
2009	14.965889765121688
2010	16.176215517922007
2011	15.92954366380166
2012	16.060196707153757
2013	16.560203125587684
2014	17.717719168822356
2015	17.869384607276682
2016	17.93472230241835
2017	18.48318496870561
2018	18.181446487113345
2019	18.378671403330735
2020	17.572357015769704
2021	17.930421846179577
2022	18.60341319427402
2023	17.753143995242606