Year Percent of GDP 2001 34.102 2002 36.502 2003 39.14 2004 47.743 2005 46.41 2006 44.922 2007 45.12 2008 51.892 2009 62.662 2010 69.957 2011 76.511 2012 80.322 2013 80.854 2014 80.513 2015 80.363 2016 81.735 2017 80.709 2018 80.878 2019 83.351 2020 86.224 2021 88.173 2022 91.276 2023 92.952 2024 94.316