Year % of GDP 2000 28.427389518764496 2001 21.55371263824934 2002 24.67526741086216 2003 24.873669330198183 2004 30.78841214959208 2005 28.912513952945044 2006 32.2042854838468 2007 29.99741707464728 2008 30.155510146431062 2009 24.962864773299724 2010 25.596407703150426 2011 22.160242931025984 2012 25.796493918857788 2013 21.31998698313152 2014 21.05070743702813 2015 17.772742827865834 2016 16.937738914659334 2017 16.98652065650512 2018 17.655973487208055 2019 14.167606463433765 2020 13.12293907313872 2021 8.620599686688802 2022 10.229846106704635