Year % of GNI 1991 10.3907349280225 1992 9.48334007824093 1993 10.2028242046647 1994 10.3568230709647 1995 10.4277503678532 1996 12.9395956829945 1997 12.6199053791222 1998 15.0645413018211 1999 13.8083875137721 2000 14.0339964291697 2001 12.5592370146805 2002 12.7440265156367 2003 11.2679792446776 2004 11.0930879563243 2005 10.3763066964525 2006 9.63754438454842 2007 9.05357320923227 2008 10.8210891378027 2009 10.4393041495813 2010 10.9093680029233 2011 9.88352659007387 2012 11.2977791014376 2013 14.6561518221632 2014 17.1114858321089 2015 17.9363418921384 2016 12.1915704128639 2017 12.0824187727043 2018 12.1070815482432 2019 14.5469027974147 2020 13.8765929004061 2021 14.7723420298927