Year % of GNI 1970 3.2007523313537236 1971 3.179972694904858 1972 3.28240225280139 1973 3.314502562799476 1974 3.0744497213191213 1975 3.3492469056166008 1976 3.3277216132310636 1977 3.099114223588569 1978 3.181589582065895 1979 3.1757212091725653 1980 2.8410095823132093 1981 3.2964716774257337 1982 3.6981285664841312 1983 3.947852198449855 1984 3.7613595478449846 1985 3.6086823348778605 1986 3.392907886735077 1987 3.685189247405475 1988 3.483183360204622 1989 3.6147985877498945 1990 3.711675921631784 1991 3.661862595188838 1992 3.99046770474425 1993 4.003014771863492 1994 4.562776951739765 1995 4.829997972036274 1996 5.0528628891004255 1997 4.93030055248139 1998 3.429704545896355 1999 3.363892929925703 2000 3.2474769397041965 2001 3.38108618664904 2002 3.3383392912426717 2003 3.29252137704548 2004 3.380160802527204 2005 3.4347264473825994 2006 3.4987484904134023 2007 3.571244270789137 2008 3.3041438630046622 2009 3.662065311613434 2010 3.645736043746075 2011 3.501086775634565 2012 3.609915811353808 2013 3.540694100147567 2014 3.5419382677193365 2015 2.4676705799906857 2016 2.51421406865065 2017 2.6729100421440397 2018 2.6953002566903805 2019 2.6753440527345385 2020 2.672525648558559 2021 2.7845993050825495