Year % of GNI 1980 0.812127139117259 1981 0.810625349031489 1982 1.28450545940093 1983 0.795135450957406 1984 0.772501016840868 1985 0.519626367198491 1986 0.62242830808235 1987 0.507004365675988 1988 0.549575690409303 1989 0.597164198347086 1990 0.734247932397336 1991 0.753443303750767 1992 0.726131073594324 1993 0.630657243184481 1994 1.09006445958669 1995 1.68563390854781 1996 1.72379670691992 1997 1.75953601884459 1998 1.83432324287114 1999 1.27037857789492 2000 1.3981581257989 2001 1.27103426402758 2002 1.37759449372785 2003 1.65947199332043 2004 1.23681947513989 2005 1.30063514734744 2006 1.26792229246872 2007 1.58030268736854 2008 1.72004981977251 2009 1.75152926119733 2010 1.59493788752637 2011 1.63479630435724 2012 1.91973565978562 2013 1.84070492633865 2014 1.9692349697479 2015 2.45303824419413 2016 2.4931705334543 2017 2.35286090362699 2018 1.54378748318248 2019 1.47953516817524 2020 1.59303806195291 2021 1.62054641457388