Year	% of GDP
1975	67.87210746604998
1976	69.31792127499233
1977	55.545137195606046
1978	59.770646780123194
1979	70.36316773566085
1980	69.37864123354261
1981	71.29749791485932
1982	48.21241399970261
1983	51.23136794822909
1984	53.25974871049518
1985	44.203204883276406
1986	56.43737584514776
1987	52.29292224718345
1988	49.022039401658965
1989	51.8095006091879
1990	19.68368410944156
1991	-236.24226161145313
1992	22.899881642038984
1993	31.193580581791664
1994	31.41336093527703
1995	37.71059035669073
1996	39.922148980707256
1997	42.617873412023755
1998	26.98791324771533
1999	31.36088783767688
2000	49.56655562092841
2001	38.158872027947844
2002	28.284732864539876
2003	36.306345046311705
2004	48.73520697391632
2005	58.86399471034027
2006	66.88440871628029
2007	57.24848395806706
2008	58.50181959380828
2009	42.92629659118802
2010	51.51929057127804
2011	57.39668833427525
2012	56.94068786403743
2013	55.10834648903676
2014	50.16981385836468
2015	30.91814499789306
2016	25.45221095080718
2017	35.49196271578597
2018	39.702864127457296
2019	34.71825025065759