Year Percent of GDP 2005 10.409 2006 6.392 2007 2.59 2008 1.983 2009 9.661 2010 18.254 2011 20.71 2012 20.425 2013 19.596 2014 19.337 2015 18.72 2016 16.833 2017 14.104 2018 10.312 2019 8.826 2020 11.702 2021 14.417 2022 15.729 2023 15.725 2024 15.724