Year % of GNI 2000 9.90888091541571 2001 12.566042952535 2002 12.1815330049839 2003 13.5587871799765 2004 12.309319627838 2005 9.372378840546 2006 7.72012163202213 2007 9.32649881190098 2008 4.15894077350293 2009 7.70683968529761 2010 8.20771839660656 2011 8.7951797293932 2012 9.24708464363585 2013 12.2219555645603 2014 12.1771360997828 2015 13.0658422375951 2016 13.2133480679133 2017 13.7009805992375 2018 11.7913985905589 2019 13.3280342447626 2020 11.3313616636631 2021 9.88321164497251