Year Percent of GDP 2000 45.171 2001 34.115 2002 36.054 2003 45.613 2004 44.34 2005 41.9 2006 46.341 2007 47.69 2008 43.097 2009 41.759 2010 46.87 2011 45.145 2012 44.274 2013 40.834 2014 43.393 2015 39.186 2016 41.022 2017 39.775 2018 40.033 2019 49.275 2020 41.179 2021 40.716 2022 40.528 2023 40.45 2024 40.203