Year % of GNI 1979 8.272186839589683 1980 6.431963503010698 1981 8.398049007263047 1982 10.06421151856036 1983 10.497167223274257 1984 10.274341114749587 1985 10.622633763490098 1986 10.413904202282383 1987 10.531382732327351 1988 11.227073460349098 1989 14.006255705623689 1990 7.917352306996964 1991 9.915410317099719 1992 10.56415741804732 1993 11.611067197645335 1994 12.833084040966831 1995 11.735085137180585 1996 12.120984969628221 1997 12.203358306733495 1998 11.701851488731581 1999 10.621555149646161 2000 10.04326721800049 2001 10.179936395699135 2002 11.370967738273288 2003 12.511531363805876 2004 13.742219573703132 2005 13.859997690365326 2006 15.388993915966275 2007 16.51639867944629 2008 16.129058058064086 2009 16.462570086038838 2010 16.526228723476255 2011 14.80626715111911 2012 15.153903741612048 2013 14.267397938062597 2014 14.603477064390043 2015 14.383618545288464 2016 13.9877394627294 2017 14.542056277359144 2018 13.795729132429265 2019 13.157864862549882 2020 12.94985842122091 2021 13.7428676639109