Year Percent of GDP (Units) 2002 76.708 2003 40.897 2004 45.372 2005 38.568 2006 36.692 2007 31.758 2008 34.185 2009 43.689 2010 45.007 2011 48.572 2012 56.870 2013 58.654 2014 63.360 2015 68.760 2016 66.390 2017 66.207 2018 71.885 2019 78.793 2020 107.348 2021 85.627 2022 70.552 2023 61.498 2024 62.306 2025 61.439 2026 62.209 2027 63.169 2028 64.826 2029 66.075