Year % of GNI 1990 8.26710365836347 1991 -166.127193419798 1992 17.6926751699031 1993 19.9615638155255 1994 19.3070208450371 1995 22.3365741722732 1996 25.0315091049472 1997 26.1476681251744 1998 12.9274537951721 1999 18.6853315659011 2000 30.5703704872305 2001 20.5708332061936 2002 12.2153757373171 2003 20.2137124717342 2004 31.1570775901828 2005 38.1083872818214 2006 45.3263885296028 2008 38.8588985950126 2011 36.4825404072966 2012 35.4715926296306 2013 33.2157168500212 2014 28.8052429402468 2015 12.2241428256694 2016 7.36700079630481 2017 15.8332341256467 2018 18.6552366539448 2019 12.6537553806624