Year % of GNI 1984 27.763392872803667 1985 28.389049661538408 1986 28.24122004289781 1987 26.055746785052108 1988 23.722953857328015 1989 26.829458852458288 1990 18.795362182612596 1991 -11.172479909697529 1992 -12.6757908337552 1993 10.896566521697144 1994 3.087193363834859 1995 16.064784956364594 1996 15.77900785462103 1997 5.450915563314192 1998 16.831539843229002 1999 14.55843797290566 2000 25.135540236603457 2001 28.02494715838316 2002 24.89203175086202 2003 25.57210774517473 2004 28.708396374825554 2005 29.51261454981711 2006 28.236644322750088 2007 23.303949796088656 2008 17.641874097055187 2009 17.615940191339615 2010 20.16911830939197 2011 20.54013785338929 2012 19.7723765657262 2013 17.440539635043297 2014 15.784677705422482 2015 16.66644681609046 2016 16.77661082145795 2017 16.48910881967303 2018 16.567315600896215 2019 14.587532385701333 2020 13.638194727692738 2021 17.39274266172306 2022 18.764588778901196 2023 17.996276853885146