Year	% of GDP
1972	14.112022701853094
1973	13.768258735570196
1974	14.257961792661806
1975	13.923478913484328
1976	14.051380826784094
1977	14.466112265624636
1978	14.370796604978278
1979	14.565600527634828
1980	14.95884117205852
1981	15.28747940646095
1982	15.176153724691295
1983	14.468163518401449
1984	14.369766505602017
1985	14.578872303759086
1986	14.587784444506934
1987	14.908896112120884
1988	14.736384844277628
1989	14.675167855647413
1990	14.673013740952499
1991	14.583710924691431
1992	14.240369812629357
1993	14.19909659418745
1994	14.804433723842376
1995	15.300458312770482
1996	15.573070856490514
1997	15.82124497734507
1998	16.23670441435615
1999	16.210807222385696
2000	16.862285020429557
2001	16.323934200117847
2002	15.141802094852295
2003	14.877156257383016
2004	14.900362683815672
2005	15.675992731676475
2006	16.102501372229
2007	16.19096763233901
2008	15.661643536229027
2009	14.03649727935461
2010	14.182584610325664
2011	14.586569881391735
2012	14.688919512684194
2013	15.063187921119038
2014	15.234869641250985
2015	15.244248181168608
2016	15.114648583274228
2017	15.501922759634931
2018	15.10716112003306
2019	15.041690056721595
2020	14.996383725059664
2021	15.889565481899297
2022	16.38504821183312