Year % of GNI 1970 8.621254416829364 1971 8.527814689206611 1972 8.94832498194778 1973 8.730268970891988 1974 8.64395313875987 1975 8.801493063724312 1976 9.093319482553763 1977 9.032445440797636 1978 8.633643988285709 1979 8.668053002040784 1980 9.3397652784206 1981 9.300350374043926 1982 9.494348049480003 1983 9.518158142477883 1984 9.470302533566553 1985 9.175702435424073 1986 9.783043704014624 1987 9.752491364333716 1988 8.962875731751712 1989 9.057597844612145 1990 9.402964958788374 1991 9.496602310348171 1992 9.255886718638916 1993 9.8841063670863 1994 10.292105014673782 1995 10.651149390255751 1996 10.988228078397468 1997 11.654958245424687 1998 13.248951439468664 1999 13.230438144349906 2000 13.174153964348172 2001 14.500409956026061 2002 14.359405061050232 2003 14.500553766315814 2004 14.704407028871781 2005 14.923072398741178 2006 15.350426182567995 2007 15.674977232412603 2008 16.539002884868193 2009 17.71660998971514 2010 18.399741360229722 2011 19.704731335182714 2012 20.476538693676073 2013 21.578617950658842 2014 22.048431272314055 2015 22.590610771086922 2016 22.451525904342557 2017 22.354746554259904 2018 23.464398500491487 2019 24.02316089593299 2020 25.28020118813492 2021 25.255716874708796