Year % of GDP 1999 11.106979869668255 2000 8.39504849504573 2001 8.886179657498996 2002 8.413026447859119 2003 8.456719507353233 2004 7.722174034156406 2005 6.559271369984196 2006 6.366002714262628 2007 6.326018784011418 2008 5.549750920496281 2009 8.011217414978146 2010 7.5317156149137725 2011 7.083525121713668 2012 8.026971674120945 2013 9.12007464194984 2014 9.407074408563727 2015 10.532789696501805 2016 11.068313054579384 2017 11.031880930478364 2018 11.243830135499515 2019 11.479179885716384 2020 12.834169388718584 2021 11.233402630521308 2022 10.616863652637534 2023 13.153358713028021