Year % of GNI 1984 1.81200236163872 1985 1.45481684687325 1986 2.88266513425412 1987 5.01005521773131 1988 9.13270283646684 1989 7.80170455371216 1990 6.87344518560215 1991 6.99010950699281 1992 7.099137155193 1993 6.09947224989715 1994 6.44523430452813 1995 9.08301136237318 1996 8.55578827138343 1997 7.82929168520979 1998 8.80793398466837 1999 5.19625361424462 2000 4.1497087977014 2001 4.63295586482258 2002 4.92233314171209 2003 6.02472503127289 2004 5.26505231813586 2005 3.3463779238515 2006 3.45748753335724 2007 4.03338692647817 2008 5.08004722861242 2009 4.17848899204537 2010 4.23413013145971 2011 4.81155154491113 2012 3.64675374599728 2013 3.37452826189155 2014 4.34513968420427 2015 2.91283170790599 2016 2.78588331122902 2017 2.75551579671868 2018 1.67908392657947 2019 1.50783084113142 2020 1.68715407754148 2021 1.58947328341538