Year Percent of GDP (Units) 2000 120.219 2001 121.313 2002 107.480 2003 95.651 2004 93.430 2005 81.339 2006 45.197 2007 39.999 2008 39.941 2009 47.389 2010 43.305 2011 37.636 2012 37.905 2013 39.397 2014 48.089 2015 58.592 2016 56.723 2017 54.576 2018 56.885 2019 56.613 2020 55.460 2021 50.899 2022 45.538 2023 46.142 2024 44.451 2025 43.720 2026 43.023 2027 42.196 2028 41.636 2029 41.096