Year	% of GDP
2002	1.2546189696565337
2003	0.8717500862151778
2004	2.426210570932197
2005	1.450621432215874
2006	0.4899592647084913
2007	1.9093136234988235
2008	0.7788953378871618
2009	0.5041544587704753
2010	0.9962461176754719
2011	1.4075388272591427
2012	1.5652080855483435
2014	0.6775147260648154
2015	0.8914419980521027
2016	1.1345082244748321
2017	1.256925606613498
2018	0.572523564691595