Year	% of GDP
1977	53.9365382690726
1978	51.7712968572006
1979	56.77605576728
1980	68.1292377827689
1981	62.549348727857
1982	56.1270309537734
1983	64.1146861541775
1984	59.0014828385785
1985	54.7036245635396
1986	55.4969271290233
1987	61.8266711034272
1988	61.8806053642813
1989	62.022317033679
1990	60.927476679467
1991	59.8397864952961
1992	51.6760112514266
1993	53.3759218827804
1994	48.4926024036242
1995	54.9275965584609
1996	57.8769389281942
1997	52.411771354312
1998	50.4121124412751
1999	50.5318532030544
2000	57.4335068276094
2001	50.9080401920807
2002	51.5831070356344
2003	52.6507051765371
2004	45.6589257215361
2005	48.4877837422514
2006	48.7943756614403
2007	47.8383198651947
2008	55.0819275184087
2009	47.8949463769438
2010	47.9048430858253
2011	45.7143654020103
2012	43.9660781559697
2013	44.7267100140521
2014	54.3164380023898
2015	55.367417692205
2016	53.6336590434377