Year % of GNI 1990 -3.602412380230345 1991 -5.243154510135692 1996 -2.7813203234861223 1997 -0.44313069818938455 1998 1.354557074889485 2001 3.8817631868568023 2002 5.973466000745412 2003 5.337863757690798 2004 7.432566235128406 2005 5.3788961316700075 2006 6.937117544373956 2007 6.740103791581305 2008 5.981619374227763 2009 8.085852099692193 2010 9.758436811473192 2011 9.38251249491384 2012 11.124255616727352 2013 11.299154259578385 2014 12.945063960333682 2015 13.099035125778421 2016 14.231362150109465 2017 15.039835135022402 2018 15.639121940613864 2019 20.001602288807273 2020 20.09956905797864 2021 17.283216695131117