Year % of GDP 2000 1.1387012 2001 1.37296844 2002 1.2326442 2003 1.22760653 2004 1.16731966 2005 1.48059738 2006 1.18389058 2007 1.21262467 2008 1.24205959 2009 1.31300271 2010 1.2781167 2011 1.27621472 2012 1.26101863 2013 1.51853013 2014 1.74078834 2015 1.81552148 2016 1.74219394 2017 1.74276435 2018 1.80703926 2019 1.84061074 2020 2.39674187 2021 2.57044268