Year % of GNI 1970 5.542354745098048 1971 6.277091880862227 1972 6.782640836242136 1973 11.233206341613638 1974 9.797225547994541 1975 8.87210981680354 1976 9.353924571866598 1977 16.98247753379955 1978 12.526613905449969 1979 14.077971346670454 1980 18.258565733128375 1981 22.57047544790885 1982 26.11767658370151 1983 30.36401298099758 1984 27.35787724291534 1985 29.686669345254185 1986 26.492418262483785 1987 31.253651349051992 1988 33.88110973478406 1989 27.19858763830062 1990 24.66187020322589 1991 20.985431284651504 1992 17.36586174905289 1993 15.566873083763507 1994 11.316424918096793 1995 9.498303068293911 1996 7.89101585323271 1997 7.703373745827228 1998 8.786415383450137 1999 10.891502972186304 2000 11.366062597535741 2001 11.070217211771965 2002 11.437632409154034 2003 11.215811644583203 2004 9.738048463081627 2005 10.009641338512223 2006 12.62853165236806 2007 12.048507749985502 2008 20.055232453672083 2009 37.350941665113226 2010 36.3986160778447 2011 37.00236195649342 2012 33.20837395514138 2013 31.27746775686398 2014 27.878372791833062 2015 28.029291059595092 2016 27.863754675288945 2017 25.712395462751402 2018 23.861853672716776 2019 26.92155888728039 2020 36.57677464808117 2021 50.03678058792471 2022 53.80203459165537