Year % of GDP 2000 2.56 2001 2.68 2002 2.55 2003 2.15 2004 2.31 2005 2.97 2006 2.96 2007 3.91 2008 6.4 2009 5.82 2010 4.5 2011 3.68 2012 4.21 2013 4.3 2014 4.9 2015 6.27 2016 7.43 2017 6.6 2018 5.75 2019 6 2020 9.08 2021 7.18