Year % of GDP 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0.668748058302524 2020 1.6401350704861963 2021 1.5941795830845313 2022 0 2023 0