Year Percent of GDP (Units) 1996 44.601 1997 42.340 1998 42.443 1999 41.317 2000 32.808 2001 26.605 2002 26.706 2003 20.384 2004 12.109 2005 -2.672 2006 -10.145 2007 -6.397 2008 -11.507 2009 -9.812 2010 -11.600 2011 -3.426 2012 -8.139 2013 -13.531 2014 -12.792 2015 -16.225 2016 -6.973 2017 -8.366 2018 -9.322 2019 -1.395 2020 9.214 2021 12.143 2022 6.560 2023 7.971 2024 8.353 2025 8.896 2026 9.168 2027 8.051 2028 6.451 2029 4.492