Year Percent of GDP (Units) 2000 28.889 2001 21.893 2002 21.737 2003 23.921 2004 19.262 2005 13.093 2006 21.611 2007 17.591 2008 16.280 2009 16.465 2010 15.950 2011 16.422 2012 19.555 2013 21.256 2014 29.642 2015 58.029 2016 54.776 2017 60.498 2018 72.670 2019 92.082 2020 137.885 2021 109.455 2022 98.051 2023 113.992