Year % of GDP 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0.0165966786205587 2007 0.0342156196028174 2008 0.281737480720263 2009 0.223473116088676 2010 0.0871568516301515 2011 0.146517470239984 2012 0.187887769940001 2013 0.0932339250177094 2014 0.0619925007019844 2015 0.0788494291706891 2016 0.066432896904465 2017 0.0422359233764264 2018 0.0347299572280426 2019 0 2020 0 2021 0