Year % of GDP 2000 6.19 2001 6.49 2002 6.78 2003 6.91 2004 6.72 2005 6.71 2006 6.63 2007 6.6 2008 6.77 2009 7.24 2010 6.86 2011 8.8 2012 9.04 2013 9.16 2014 9.2 2015 9.07 2016 9.14 2017 9.14 2018 9.28 2019 9.22 2020 9.77 2021 9.66