Year % of GDP 2002 41.4177351382853 2003 44.253153888285304 2004 49.02469158536984 2005 49.19178790265557 2006 48.412761739821335 2007 58.232168514506455 2008 45.96621611988283 2009 46.05195504439832 2010 52.16673654133099 2011 54.15354861302119 2012 53.4807681517296 2013 53.40428808605143 2014 52.502084101818404 2015 48.67947672249351 2016 48.37064767860284 2017 50.348032124469256 2018 50.2685322691782 2019 47.856119705298475 2020 40.42927975042572 2021 31.478616249318186 2022 36.89426809558123