Year Percent of GDP 2000 224.751 2001 106.305 2002 76.12 2003 71.759 2004 62.178 2005 51.312 2006 37.972 2007 31.204 2008 30.556 2009 33.925 2010 41.215 2011 43.968 2012 54.44 2013 57.508 2014 67.586 2015 71.282 2016 68.878 2017 58.727 2018 54.342 2019 50.947 2020 48.266 2021 45.531 2022 43.047 2023 40.77 2024 38.569