Year % of GDP 2000 4.93 2001 5.36 2002 5.68 2003 5.84 2004 6.15 2005 5.99 2006 5.56 2007 5.26 2008 5.46 2009 6.03 2010 5.72 2011 4.96 2012 4.43 2013 4.39 2014 4.41 2015 4.29 2016 4.28 2017 4.35 2018 4.48 2019 4.7 2020 5.02 2021 4.93 2022 4.74