Year % of GDP 2000 2.87913179 2001 2.27906799 2002 2.28035998 2003 2.66176748 2004 6.3381567 2005 7.14322186 2006 6.06891537 2007 4.32794046 2008 5.99615717 2009 11.57163811 2010 10.35444641 2011 9.71052551 2012 8.15444565 2013 7.09007835 2014 8.77403069 2015 10.46927643 2016 9.90062618 2017 10.47271252 2018 10.35222721 2019 8.42100334 2020 16.96832657 2021 16.6163311