Year Percent of GDP 2000 14.305 2001 11.862 2002 12.525 2003 8.833 2004 11.926 2005 11.495 2006 10.471 2007 15.788 2008 21.424 2009 23.559 2010 24.652 2011 29.358 2012 30.247 2013 33.049 2014 32.323 2015 36.219 2016 35.487 2017 33.364 2018 32.836 2019 34.965 2020 35.68 2021 35.287 2022 34.177 2023 34.729 2024 32.19