Year % of GNI 1982 27.603953173130172 1983 29.758179596576188 1984 30.38339291129069 1985 30.60672956083182 1986 30.35595910322076 1987 32.533028398313704 1988 33.50651073617967 1989 32.905600130171294 1990 32.53082449716274 1991 33.52280786836112 1992 34.99032810340523 1993 36.68068452717378 1994 37.175129034537406 1995 36.19535832908006 1996 35.59799071335461 1997 36.45451640391064 1998 36.46443709465673 1999 34.254065107430854 2000 34.743959865401045 2001 35.73577426435406 2002 36.403926223134896 2003 38.70421166444923 2004 41.28633415230489 2005 42.270703368586595 2006 44.08602931667605 2007 45.70989184522631 2008 47.16063502190385 2009 46.48093264866894 2010 47.545884365163616 2011 46.378683083481285 2012 45.50614495608958 2013 44.72067322583908 2014 44.75873670113703 2015 43.147348810399286 2016 42.253911905770224 2017 42.76883415927776 2018 42.623907856474275 2019 41.77815657246153 2020 41.882982324036924 2021 43.61220016552906 2022 44.25177995151918