Year % of GNI 1993 4.255453309947434 1994 4.9611273241377924 1995 4.195640463123444 1996 3.637486785478119 1997 3.1792917749048306 1998 3.241897848199135 1999 2.97718832181399 2000 2.8252377541996627 2001 3.3275109680863237 2002 4.229733599123868 2003 4.224199266762136 2004 3.65555417997769 2005 3.8962301095685 2006 4.314256988946346 2007 2.8479081970841458 2008 3.00576833689986 2009 3.370977635629365 2010 3.2433051034945133 2011 3.081876767345735 2012 2.9092659680824378 2013 2.7959020563206924 2014 2.5769468518767 2015 2.772026767953337 2016 2.9875934776003312 2017 3.1455769282773374 2018 2.9474495086356205 2019 2.9862495542736562 2020 3.983976600917396 2021 3.3627332261217253 2022 2.992318102055584