Year Percent of GDP 2006 16.669 2007 14.635 2008 9.813 2009 6.119 2010 5.904 2011 5.25 2012 8.156 2013 8.989 2014 10.572 2015 13.048 2016 14.349 2017 16.305 2018 17.005 2019 19.652 2020 22.226 2021 24.274 2022 26.102 2023 27.431 2024 28.656