Year Percent of GDP (Units) 1995 78.522 1996 69.833 1997 61.578 1998 51.414 1999 46.570 2000 36.401 2001 33.557 2002 30.874 2003 29.819 2004 28.087 2005 26.054 2006 23.645 2007 23.942 2008 42.514 2009 61.754 2010 86.163 2011 110.419 2012 119.865 2013 120.056 2014 104.047 2015 76.535 2016 74.385 2017 67.418 2018 62.866 2019 57.073 2020 58.064 2021 54.398 2022 44.394 2023 43.324 2024 41.171 2025 38.596 2026 36.440 2027 34.715 2028 33.326 2029 32.092