Year	% of GDP
1973	1.313606034914005
1974	1.4430407374644687
1975	1.6439651302426532
1976	1.4295244069369824
1977	1.3907206629492674
1978	0.2786300342419766
1979	0.3577018694152677
1980	0.3789801458823415
1986	0.9504047680591989
1987	0.8832572878931815
1988	0.9334043139558715
1989	0.8182637148904394
1995	1.1608070347150885
1996	1.1297658539071151
1997	1.0920225020813976
1998	1.108569875657539
1999	1.17520724129438
2000	-0.02018669741095723
2001	1.0563779852419777
2002	0.4533877645725275
2003	1.034247254196213
2004	0.9578523030370807
2005	1.0596367462799454
2006	1.0382578035974608
2007	1.1013516014504472
2008	1.2000260082949228
2009	1.5437219544891416
2010	1.3001789329675164
2011	1.3072401188701563
2012	1.0124489828089571
2013	0.9645884771025204
2014	1.0052021608641508
2015	0.9008105824280472
2016	0.9764688842319389