Year % of GDP 2005 1.4203505709579132 2006 0.5969571738862018 2007 0.003489534765711916 2008 0.05386947142690102 2009 0.136130479951102 2010 0.1275658249921387 2011 0.12005405267727774 2012 0.12431051463794068 2013 0.30983941500503165 2014 0.3193301248322966 2015 0.6023117319360433 2016 0.5915670826051898 2017 0.5814088263390148 2018 0.32621201403661987 2019 0.36775139119737316 2020 0.3562212725299525 2021 0.40034918706347833 2022 0.38319798124023907 2023 0.35058213182135517