Year	% of GDP
1996	0.21645000576973
1998	0.397890001535416
2000	0.468989998102188
2002	0.652540028095245
2004	0.599900007247925
2006	0.6110600233078
2008	0.788469970226288
2009	1.01001000404358
2010	1.03608000278473
2011	1.03341996669769
2012	1.09268999099731
2014	1.2627500295639
2015	1.27945005893707
2016	1.41516995429993
2018	1.04025995731354
2020	0.950879991054535