Year	% of GDP
1980	17.90609333809131
1981	24.446150616636054
1982	28.80293686369199
1983	27.6586260901123
1984	27.071332461835844
1985	26.43269041083491
1986	20.41563936516802
1987	18.961510502967332
1988	20.75736135126481
1989	17.863587118687636
1990	16.293386056253738
1991	19.33466268482067
1992	19.895552655576296
1993	17.88547433678005
1994	20.05080471296366
1995	18.5714165210804
1996	15.90692957946693
1997	16.73775178299433
1998	16.21153914641817
1999	16.733995289001633
2000	16.232999722511828
2001	17.965083187441085
2002	16.902809834719324
2003	17.7368113036203
2004	16.569194806749312
2005	16.976496154456044
2006	17.897237940283343
2007	19.103321439499766
2008	20.422447434114297
2009	24.852509394611253
2010	27.974223553852685
2011	29.616270674177812
2012	28.843025785636428
2013	27.32426204843317
2014	26.444264348986284
2015	23.912310740149316
2016	24.683179221119648
2017	27.101283223753615
2018	23.889687864549153
2019	25.438914752831003
2020	24.570642378849616
2021	27.853015211754055
2022	32.35361938688236
2023	30.02112632156883