Year Percent of GDP 2000 28.889 2001 21.893 2002 21.737 2003 23.921 2004 19.262 2005 13.093 2006 21.604 2007 17.601 2008 16.284 2009 16.466 2010 15.944 2011 16.417 2012 20.061 2013 25.19 2014 31.758 2015 56.087 2016 51.331 2017 55.921 2018 64.973 2019 72.268 2020 75.812 2021 76.742 2022 76.31 2023 74.248 2024 71.65