Year Percent of GDP (Units) 2000 90.522 2001 77.498 2002 42.643 2003 44.150 2004 42.434 2005 46.626 2006 18.066 2007 18.535 2008 20.098 2009 21.855 2010 25.289 2011 23.965 2012 25.390 2013 26.382 2014 26.907 2015 30.661 2016 36.018 2017 35.985 2018 37.524 2019 40.725 2020 46.925 2021 50.346 2022 52.885 2023 52.978 2024 55.126 2025 55.739 2026 55.522 2027 55.409 2028 55.408 2029 55.549