Year	% of GDP
1974	23.956601570969802
1975	20.274843062012433
1976	28.082606373409757
1977	27.247990126849192
1978	27.590666714578337
1979	33.351283822002806
1980	29.31830119421252
1981	25.244302501147132
1982	23.923704842600625
1983	26.36562375788522
1984	28.649905709645807
1985	25.626694207327212
1986	25.620862110649146
1987	31.04889927138515
1988	31.6552992643738
1989	30.68049000399027
1990	30.38268069633275
1991	29.278262014620655
1992	31.696475031447786
1993	34.713172352114476
1994	35.091416129264665
1995	33.89325516876117
1996	37.04072348007838
1997	37.02054492127013
1998	39.84915899526691
1999	38.305980768975004
2000	35.91737958086538
2001	32.25177903391864
2002	32.7350846657081
2003	34.852651461784426
2004	35.13749662481436
2005	36.815754950786236
2006	38.79647451484326
2007	38.766842577551294
2008	38.51770801194281
2009	33.36344162676832
2010	33.46646829885207
2011	34.08180298560081
2012	30.9153494882722
2013	29.419840114681577
2014	29.366566951356475
2015	28.399147642693567
2016	28.38500192066486
2017	28.335987606645922
2018	26.12832473992257
2019	24.546150625052004
2020	23.82106148192942
2021	25.990539517163256
2022	26.58880294268035