Year % of GDP 2000 4.2 2001 4.65 2002 7.61 2003 7.18 2004 6.06 2005 5.86 2006 5.85 2007 5.5 2008 6.64 2009 8.44 2010 9.24 2011 9.38 2012 9.13 2013 10.32 2014 10.18 2015 10.12 2016 9.95 2017 10.36 2018 10.01 2019 11.38 2020 12.24 2021 12.34