Year % of GNI 1970 20.338041207280714 1971 24.10536324166271 1972 23.568797245556176 1973 24.084122741658724 1974 24.26231010241135 1975 24.273103669486414 1976 30.811621193269488 1977 32.39781314111212 1978 55.23980291135104 1979 46.515379302585536 1980 45.462532132280245 1981 51.047289679767005 1982 54.63158046765548 1983 56.214147603922214 1984 51.07102601618401 1985 59.53987111452991 1986 64.07032357612634 1987 71.45611805898005 1988 74.83840753614743 1989 74.760172800078 1990 73.58725659592639 1991 73.72684502362873 1992 66.8956678114915 1993 66.75747928224123 1994 68.35698675241363 1995 65.28631933709481 1996 60.56699397652204 1997 54.340942881674636 1998 58.263812236814495 1999 64.67864412472413 2000 57.753328807612924 2001 57.87513030655087 2002 62.160388213522744 2003 57.326207419987384 2004 56.704579317160295 2005 46.875305205103075 2006 42.49951028648644 2007 44.25799885978436 2008 41.064555875782716 2009 46.906728828975666 2010 37.374309764765854 2011 38.44220709408568 2012 51.61658423095709 2013 52.2460698194971 2014 52.35694954887181 2015 52.846598346227324 2016 54.37346757142121 2017 55.14301073867189 2018 57.46156302421328 2019 64.84197115852155 2020 69.22316902202247 2021 67.85332609413773 2022 80.99517598146014