Year	% of GDP
1990	103.537238851558
1991	102.809397617192
1992	97.6438528456137
1993	103.907522503215
1994	107.184007223839
1995	107.952247191011
1996	90.4154351395731
1997	65.5042759205597
1998	74.1194474964684
1999	58.153541891406
2000	50.6529945923885
2001	52.8619186046512
2002	30.7127479624789
2003	13.5639500297442
2004	-23.6150398290717
2005	-41.5074597946134
2006	-59.4070472866284
2007	-57.1615090444126
2008	-53.4484407971864
2009	-65.2612459813179
2010	-60.4071872723626
2011	-114.69366679065
2012	-57.4505324298161
2013	-57.9370948379352
2014	-41.9973184469666
2015	2.85342412975895
2016	55.8078648639537
2017	53.9413407677264
2018	43.3919047924874