Year % of GNI 1982 13.45872649758041 1983 14.173061464705967 1984 16.85649033400525 1985 17.81331020102612 1986 19.90684505125164 1987 20.348749887045706 1994 9.150874717529502 1995 7.485980012767149 1996 9.47395710272929 1997 9.375713837010373 1998 9.501219978725402 1999 9.987290566443633 2000 10.339111803719007 2001 11.197052826120691 2002 12.208666319112616 2003 13.909817325670716 2004 15.575044410569259 2005 15.229127346219556 2006 16.53629697102202 2007 17.8651282116308 2008 17.266887581790588 2009 16.539238998449807 2010 17.10133417605056 2011 15.660421389254903 2012 15.908046892930312 2013 15.132798382662589 2014 15.213528101744682 2015 15.00716413037672 2016 14.188474161541603 2017 14.749244850161373 2018 14.168275213605144 2019 13.159714199560074 2020 13.323957621045782 2021 13.751536535271246