Year % of GNI 1981 0.2190954925877186 1982 1.069726698574403 1983 2.2449136398437872 1984 4.110193520426057 1985 3.5318810037591595 1986 2.4952097616442592 1987 3.3122219764153686 1988 2.942899382633733 1989 2.3855637916028294 1990 1.818181238814609 1991 2.4407742010868874 1992 2.9235027389183594 1993 1.3270381938492541 1994 2.2582743911254353 1995 1.855320885273601 1996 1.562429015785855 1997 2.992889043528614 1998 3.7768874231027967 1999 3.3971248465232806 2000 3.0707050338354804 2001 2.4576313646653714 2002 3.7779583767969043 2003 2.37995658747888 2004 2.6456000771682238 2005 3.7965950644813904 2006 2.9625496146372403 2007 1.8045621464075932 2008 1.5949351066184687 2009 1.7304541704512475 2010 1.8676266233457977 2011 1.7762029181309253 2012 1.8049245389076527 2013 1.8862498744254437 2014 2.157854157705701 2015 2.4550288392623987 2016 2.4409966249059307 2017 2.619012086278876 2018 2.588197248074757 2019 2.742262079337165 2020 3.3242232998161834 2021 2.6915498900150387 2022 4.265450665465839