Year Percent of GDP (Units) 1995 8.734 1996 8.691 1997 8.974 1998 8.012 1999 8.396 2000 8.906 2001 8.047 2002 9.238 2003 10.088 2004 7.613 2005 8.397 2006 11.742 2007 14.187 2008 16.284 2009 10.704 2010 15.130 2011 18.578 2012 18.687 2013 15.928 2014 13.682 2015 10.538 2016 9.463 2017 11.064 2018 11.002 2019 10.445 2020 15.527 2021 12.364 2022 18.036 2023 19.104 2024 15.926 2025 15.916 2026 15.218 2027 14.955 2028 14.458 2029 14.143