Year Percent of GDP (Units) 2000 109.206 2001 98.900 2002 85.906 2003 71.881 2004 66.674 2005 47.838 2006 100.873 2007 45.895 2008 103.791 2009 104.665 2010 101.494 2011 107.898 2012 90.638 2013 81.776 2014 73.461 2015 64.690 2016 56.088 2017 52.480 2018 57.599 2019 42.901 2020 42.058 2021 25.323 2022 29.911 2023 38.506 2024 45.884 2025 42.180 2026 39.015 2027 36.043 2028 33.274 2029 30.728