Year Percent of GDP (Units) 1995 12.022 1996 11.566 1997 9.978 1998 8.556 1999 10.771 2000 12.654 2001 8.275 2002 7.609 2003 7.145 2004 7.074 2005 6.938 2006 6.642 2007 6.549 2008 6.129 2009 5.785 2010 5.778 2011 5.640 2012 5.300 2013 5.090 2014 4.918 2015 4.737 2016 4.727 2017 4.451 2018 6.490 2019 8.873 2020 8.595 2021 7.900 2022 7.650 2023 7.446 2024 7.381 2025 7.616 2026 7.631 2027 7.603 2028 7.601 2029 7.592