Year % of GDP 2000 2.32489133 2001 1.94766605 2002 1.46725607 2003 1.63003397 2004 1.59777284 2005 1.58578682 2006 1.76220965 2007 1.73575354 2008 1.62055254 2009 2.12176824 2010 2.1311543 2011 2.46140838 2012 3.03290367 2013 2.6527679 2014 3.16169024 2015 3.1565783 2016 3.14797997 2017 3.02672791 2018 3.02979112 2019 3.31885815 2020 4.13318157 2021 4.46610212