Year % of GDP 2000 4.46309471 2001 5.04882431 2002 4.97795296 2003 5.05799437 2004 4.74509478 2005 5.21023846 2006 5.08809328 2007 5.31898928 2008 5.76758432 2009 6.42686415 2010 6.61249924 2011 6.040277 2012 5.67610359 2013 5.18027782 2014 4.48809004 2015 4.73999214 2016 4.34255171 2017 4.24350309 2018 4.23590946 2019 3.99746466 2020 5.12932062 2021 5.43146896