Year Percent of GDP (Units) 2001 95.659 2002 93.545 2003 80.119 2004 74.153 2005 58.335 2006 59.841 2007 75.827 2008 122.353 2009 121.835 2010 121.287 2011 133.278 2012 129.327 2013 96.143 2014 110.989 2015 97.809 2016 111.495 2017 85.612 2018 84.031 2019 68.148 2020 60.957 2021 44.804 2022 60.259 2023 70.961 2024 88.368 2025 85.152 2026 82.322 2027 79.613 2028 77.056 2029 74.638