Year % of GNI 1990 15.9414868797273 1991 14.2202907306026 1992 15.0166042870332 1993 12.5783782934779 1994 11.1633562650225 1995 12.6634834247971 1996 10.2225607687291 1997 11.3405110767515 1998 12.0127627220925 1999 9.34018327089809 2000 6.71617705460109 2001 6.85975234910186 2002 5.81023062951299 2003 4.79671336732946 2004 3.74121278489241 2005 1.73530485071934 2006 0.648487662403716 2007 1.65074507223086 2008 -1.27045162250755 2009 -1.42850301400407 2010 -1.92998819949309 2011 0.103762209484044 2012 -0.486689753713085 2013 2.63698771225164 2014 1.79919337816525 2015 2.22704608004789 2016 3.05018036141536 2017 4.73840820499913 2018 4.48937071053944 2019 4.48698519425464 2020 1.59150322804289 2021 3.09478565454718