Year	% of GDP
1991	4.527683201859518
1993	1.3426053403838116
1994	1.6346223370078308
1995	2.39839689398209
1996	1.7306808905928641
1997	1.3798839575565998
1998	1.441446658233121
1999	2.1080863343765586
2000	2.0253224854761136
2001	1.255666390680012
2002	1.8998591064950319
2003	2.0989734772308655
2004	2.5210224405825157
2005	2.7953610946477023
2006	3.1114012684717243
2007	3.726580686538129
2008	3.483406389116899
2009	2.781192416984628
2010	2.5573880537778155
2011	2.3542457931278493
2012	1.9465142004931553
2013	2.141464295072875
2014	2.103144797417848
2015	2.5520793990626016
2016	1.9692632211404892