Year Percent of GDP (Units) 1995 77.446 1996 75.214 1997 67.842 1998 70.021 1999 68.790 2000 64.818 2001 59.670 2002 67.442 2003 70.727 2004 56.567 2005 54.841 2006 55.944 2007 56.811 2008 58.898 2009 66.767 2010 69.139 2011 65.658 2012 66.923 2013 63.293 2014 66.463 2015 67.381 2016 70.425 2017 79.876 2018 81.784 2019 77.001 2020 67.148 2021 71.273 2022 67.048 2023 59.428 2024 61.238 2025 65.375 2026 66.070 2027 65.847 2028 65.746 2029 64.819