Year Percent of GDP 2004 -1.947 2005 30.788 2006 25.332 2007 18.715 2008 34.799 2009 10.578 2010 23.736 2011 32.979 2012 27.158 2013 28.331 2014 28.565 2015 18.385 2016 13.123 2017 18.834 2018 19.247 2019 13.728 2020 14.24 2021 13.44 2022 12.398 2023 11.555 2024 10.232