Year Percent of GDP 2000 90.522 2001 77.498 2002 42.643 2003 44.15 2004 42.434 2005 46.626 2006 18.066 2007 18.535 2008 20.265 2009 21.937 2010 25.289 2011 23.965 2012 25.39 2013 26.382 2014 27.357 2015 30.666 2016 35.945 2017 35.446 2018 36.618 2019 36.928 2020 37.564 2021 38.201 2022 38.907 2023 39.104 2024 39.551