Year	% of GDP
1980	18.042169138211744
1981	18.042355894403418
1982	18.042331812919656
1983	18.04225693508628
1984	18.042289425555115
1985	18.0423421730915
1986	18.04236516698212
1987	18.042367648218615
1988	18.042391475014597
1989	18.042382324915316
1990	18.042280019663163
1991	18.04237648671464
1992	18.04233558554838
1993	18.042344936758216
1994	18.04234211120307
1995	18.042289447397884
1996	18.042361566304706
1997	18.04229836712947
1998	18.042276604969558
1999	18.042276340822614
2000	18.042295185393105
2001	18.0423401277439
2002	18.04231171854907
2003	18.042321601997873
2004	18.042334010285956
2005	18.042313166433967
2006	18.042325814243274
2007	16.88740910348111
2008	19.248876874053177
2009	17.99068054563902
2010	18.17496520224249
2011	16.021471476454387
2012	16.151564074614893
2013	16.35616975067537
2014	15.202965378083357
2015	13.638040275851765
2016	12.560673006648763
2017	13.433443374813786
2018	14.868092925580784
2019	12.734806261627254
2020	11.801762531981428
2021	13.532894590403549
2022	12.961718860389409
2023	12.71701657499884