Year Percent of GDP (Units) 2001 8.736 2002 0.866 2003 4.985 2004 3.661 2005 3.791 2006 -7.116 2007 -4.612 2008 -8.294 2009 -0.789 2010 1.170 2011 4.281 2012 5.130 2013 8.216 2014 7.811 2015 9.118 2016 9.869 2017 14.146 2018 14.913 2019 17.693 2020 5.134 2021 17.448 2022 17.374 2023 15.518 2024 13.863 2025 11.460 2026 11.167 2027 10.665 2028 10.482 2029 10.296