Year Percent of GDP (Units) 2000 260.964 2001 210.243 2002 180.244 2003 159.458 2004 129.914 2005 75.748 2006 25.006 2007 21.922 2008 19.192 2009 20.521 2010 18.898 2011 20.808 2012 24.920 2013 25.909 2014 33.857 2015 61.869 2016 58.035 2017 63.358 2018 75.229 2019 94.426 2020 140.001 2021 111.047 2022 99.476 2023 115.233