Year % of GDP 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0.27514279521417956 2017 0.3016611465608912 2018 0.25779064222936054 2019 0.2381158494335475 2020 0.15929442210483777 2021 0.16853785240280542 2022 0.15472928207237427