Year % of GNI 1990 0.00454513377948079 1991 0.00470675410214227 1992 0.00474461814895125 1993 0.0049714817046775 1994 0.00711335421908046 1995 0.00574902439872247 1996 0.00582928873799579 1997 0.0062618591589965 1998 0.284366805122434 1999 0.493067762172839 2000 0.892832152569835 2001 0.946196017359052 2002 0.769438715078305 2003 0.646000571806131 2004 0.619331337235214 2005 0.635501782239685 2006 0.697171138778403 2007 0.678471647130654 2008 0.586088818496295 2009 0.709913315444096 2010 0.773631362196091 2011 0.74256848610806 2012 0.80645578193386 2013 0.812548608234469 2014 0.814070781813327 2015 0.990872341176718 2016 1.22849543256462 2017 1.3038879251956 2018 1.29408022902599 2019 1.43348727300386 2020 1.51674523465022 2021 1.59654297988403