Year % of GNI 1970 26.358668829810274 1971 22.76522089657702 1972 28.801888482619596 1973 25.25056231355399 1974 25.391859761611542 1975 25.848265076741068 1976 25.8911782140784 1977 33.56276020767778 1978 34.992081845668146 1979 32.000109760416706 1980 31.591839874900412 1981 36.55592705623999 1982 36.870713314515356 1983 41.43572898176518 1984 44.97824103105691 1985 50.99438626570323 1986 49.327962049649486 1987 67.11327789788956 1988 61.798966438587335 1989 66.2731034175146 1990 67.18253956457994 1991 67.58064841354755 1992 71.44462341302783 1993 83.43704963599065 1994 102.50841655662704 1995 93.75334188215247 1996 94.89866741276794 1997 93.9281531264451 1998 95.0735868867058 1999 94.03607614691276 2000 139.4435810251341 2001 131.77013202879445 2002 126.5628321199021 2003 111.15807400736817 2004 83.42201145251326 2005 76.24298779496719 2006 29.832109353313875 2007 33.66697976932657 2008 35.216713589625755 2009 49.94357650437971 2010 56.799340639406815 2011 55.93236525510768 2012 59.05950876186817 2013 46.64348899119355 2014 54.85560994319003 2015 65.25220377086453 2016 64.5398353136288 2017 58.850896525547626 2018 55.3640715300969 2019 49.7019812129625 2020 57.43014602658732 2021 58.046171714494434 2022 61.43344189081258