Year % of GNI 1990 1.13841482902944 1991 1.24978744185717 1992 1.28763632566647 1993 1.2295350081833 1994 1.76769702119144 1995 1.54591744665193 1996 1.6522764447305 1997 1.71416675955931 1998 1.21466126018693 1999 1.35248156705947 2000 1.48602300003963 2001 1.95073314547748 2002 1.77938340107747 2003 1.49017953577874 2004 1.22877014981971 2005 1.09146515900757 2006 1.16185517587026 2007 1.10240943219703 2008 1.01034661988355 2009 1.23892498378038 2010 1.10202860515628 2011 1.13973735920015 2012 1.16918621252439 2013 1.08358048319937 2014 1.23230462519678 2015 1.43052987497512 2016 1.56326829037952 2017 1.83546884911773 2018 2.10443270130461 2019 2.16603391357313 2020 2.3635910716953 2021 2.4358210856463