Year % of GNI 1990 11.0648987459032 1991 12.8183455043845 1992 13.7294699726899 1993 5.88918683864829 1994 3.06021789057949 1995 3.55859446027795 1996 2.50147203743086 1997 3.18405396912185 1998 3.04236505588881 1999 2.90488928406346 2000 3.35336873983628 2001 3.20175842114822 2002 2.55730477835051 2003 2.53609314904611 2004 2.22699282474895 2005 2.03207558442023 2006 1.64678322771672 2007 1.38005682875644 2008 1.23615941244643 2009 1.38291022404913 2010 1.27621271967291 2011 1.40306264921847 2012 1.60944519581244 2013 1.50617951643364 2014 1.52093530561579 2015 1.69086839286556 2016 1.68722361918755 2017 1.68381423562639 2018 1.76730643047416 2019 1.82336418768696 2020 1.90503243130788 2021 1.95075286450293