Year % of GDP 2000 1.915108077804014 2001 2.136231704715854 2002 2.1543446899550025 2003 2.07829594121501 2004 2.0315644191157 2005 1.950556151596524 2006 2.0445267403969174 2007 2.073023874988479 2008 2.124471445518409 2009 2.4557690949583053 2010 2.2651446526262435 2011 2.2985565819562663 2012 2.2301167458110154 2013 2.2811126392380654 2014 2.6656981227526235 2015 2.7396543786750924 2016 2.948366671487707 2017 2.9302524153105467 2018 2.7283948495746695 2019 2.4455349838017146 2020 2.4825503760068277 2021 2.5906635548044394