Year % of GNI 1993 0.16257796827296764 1994 0.3386500845098368 1995 0.6334595787393724 1996 2.403639771496904 1997 1.1541692127124221 1998 2.846060724930873 1999 2.104330375130722 2000 1.1293168064419294 2001 1.8598691078214122 2002 1.9666646218332768 2003 2.463675449461759 2004 1.6204603021584507 2005 0.48845630401475465 2006 0.39113680642317783 2007 0.27533061849198576 2008 0.21125376323008005 2009 0.4897545041245967 2010 0.6069534883508603 2011 0.6322313029746831 2012 0.6652176625913492 2013 4.900872917704236 2014 0.9333704658402285 2015 3.2765084512633975 2016 1.814888175156935 2017 1.931119751250887 2018 2.3697624009530194 2019 5.480052481784863 2020 3.8596596261167524 2021 2.899560860047601 2022 2.2395566079208566