Year % of GNI 1975 12.6169926076689 1976 18.1724351737839 1977 26.2318902341637 1978 18.860793410767 1979 14.7840091121498 1980 17.8240428000122 1981 20.3154840988792 1982 16.8297422684567 1983 20.9354969196106 1984 18.5552615049455 1985 24.8215418911194 1986 21.9414888348393 1987 18.9224420378814 1988 20.9959621750991 1989 15.0406242672339 1990 19.8381594203327 1991 20.3025877535436 1992 15.8071761828869 1993 39.638615020159 1994 35.60315657614 1995 24.6917257705023 1996 16.7957322388206 1997 16.4871935336911 1998 16.4098367571793 1999 18.7376291605058 2000 13.0134513783101 2001 9.88896863980188 2002 8.61274224377454 2003 9.58150509724652 2004 12.0674988194594 2005 13.877282935908 2006 16.1049418465041 2007 16.7374095318056 2008 15.4184553069142 2009 7.5845316231337 2010 8.10831044895426 2011 7.29600037706114 2012 7.30295798480015 2013 5.67441357583292 2014 6.83982565126088 2015 7.55018006470977 2016 14.1464370177782 2017 13.5344567931298 2018 14.6897278195129 2019 14.3000389724394 2020 15.3534885533191 2021 16.6608068539816