Year	% of GDP
1970	27.098184224508465
1971	26.217697827131197
1972	25.96585589577162
1973	26.44941630932449
1974	25.493949488569314
1975	23.121206494278233
1976	23.516962169145287
1977	23.332991605394014
1978	23.653526824828084
1979	23.414238591402263
1980	22.277146335772926
1981	21.25220161915723
1982	21.203139757213783
1983	21.279598695863893
1984	21.96466479005739
1985	22.187037162496765
1986	22.581933368477124
1987	22.05900572562259
1988	22.873806134082606
1989	23.85380809077763
1990	23.334520469348185
1991	23.14099635239767
1992	22.75357607017359
1993	21.755096722734667
1994	22.082434941350737
1995	23.497235965814507
1996	23.14665625352759
1997	23.10820910007917
1998	23.401943939338974
1999	23.21492763726879
2000	23.770971697192277
2001	23.66232918541603
2002	23.38832727563198
2003	23.02888938677139
2004	23.485459772819514
2005	23.61027462747945
2006	24.530595273686647
2007	25.312893054568324
2008	24.961557492723397
2009	21.967101708858337
2010	22.97700021653983
2011	24.03536389424892
2012	23.771238179299377
2013	23.658326837073385
2014	24.106808897347047
2015	24.65993916667526
2016	24.636108438269286
2017	25.32073075193906
2018	25.798789296074204
2019	25.838084599869156
2020	25.587131284836563
2021	27.11572270251863
2022	27.028323936691507
2023	26.353430136345317