Year % of GDP 2000 0.64626944 2001 0.698044 2002 0.75874555 2003 2.30581403 2004 1.92855704 2005 1.61526906 2006 1.48286724 2007 1.74706471 2008 1.81512129 2009 1.88223851 2010 2.03978682 2011 2.19846153 2012 2.05578661 2013 2.17317319 2014 2.19436383 2015 2.10574889 2016 2.23370934 2017 2.2288599 2018 2.34174061 2019 2.51631737 2020 3.02292728 2021 2.98952579