Year	% of GDP
1970	26.552455558635756
1971	26.313748798879576
1972	26.509855936217242
1973	27.68978780324612
1974	27.76607384386147
1975	25.206752426170574
1976	26.12510986964564
1977	26.438762849097554
1978	26.758628671304656
1979	26.979959032269807
1980	26.33556032573392
1981	25.581103718096283
1982	24.289099293034074
1983	24.033660325422513
1984	25.132703463943905
1985	24.73785294492255
1986	24.811010184280917
1987	25.008550061580515
1988	25.996675713187507
1989	26.397557665589723
1990	26.010914165989856
1991	25.28036742950437
1992	24.761275661036507
1993	24.18866665319112
1994	24.535999024225827
1995	24.63304736917246
1996	24.427999298131837
1997	24.29956214789837
1998	23.986368419386668
1999	24.14195743371558
2000	24.46904199867676
2001	23.678576813473295
2002	23.050339152448572
2003	23.263443832617327
2004	23.95625418601966
2005	24.33656830932164
2006	24.9082693046121
2007	25.394308398503124
2008	25.39418597166806
2009	23.36401815635845
2010	24.561388921135045
2011	25.278341552375018
2012	25.4363101612622
2013	25.530479138531838
2014	25.829857189695478
2015	25.92275559811655
2016	25.647143080548467
2017	26.13267143994599
2018	26.657715948036593
2019	26.61796541055183
2020	26.526304567815778
2021	27.210426858864086
2022	27.47289689011415