Year	% of GDP
1970	34.8911039745328
1971	36.7302750498032
1972	41.9853561576658
1973	47.6711751051206
1974	70.8100381605946
1975	62.0863342265801
1976	63.7748698739161
1977	58.735191956127
1978	59.2538620326741
1980	67.0485655420012
1981	46.2341064084909
1982	32.4824454817627
1983	42.1070948445943
1984	43.8536051297251
1985	34.8846039767679
1986	25.9575961918451
1987	23.618710661554
1988	26.1468844836338
1989	33.5687910279753
1990	38.8702984792295
1991	13.2175755622103
1992	28.1344138531383
1993	39.371407198475
1994	36.6059380592587
1995	36.227064016639
1996	40.1364091145126
1997	38.3929185854833
1998	27.927039066817
1999	33.8805324667688
2000	50.2892381187247
2001	42.7980143074398
2002	37.2003716194143
2003	39.816851302288
2004	46.1128336408051
2005	53.3164834648164
2006	51.0394540758358
2007	48.1550015709463
2008	52.8912935555667
2009	38.854853146546
2010	48.1906069290048
2011	58.3689295808333
2012	57.4129637304674
2013	55.5579394462588
2014	53.239569150436
2015	36.4482994431389
2016	31.6732106195044
2017	36.0090908245608
2018	44.0490671354298
2019	38.6553473115018
2020	27.5816891390019