Year % of GNI 1970 10.7081082097204 1971 9.08602373370186 1972 19.48535550074 1973 19.1988955633543 1974 15.0359851184769 1975 22.2006011035274 1976 18.4887087037414 1977 16.1746764470471 1978 16.8661497673639 1979 20.1179085581873 1980 9.36246136029186 1981 10.9502826180554 1982 7.26955392017196 1983 5.53271511810695 1984 -2.43811920858301 1985 14.3456929967214 1986 17.3949997441083 1987 17.2658062279406 1988 22.7923683957839 1989 19.6202708098157 1990 16.9148410879773 1991 14.4841300413054 1992 12.3219125621437 1993 16.9426616304221 1994 19.2117147373221 1995 18.8162914434813 1996 20.4246216817115 1997 21.9664626365108 1998 26.9390409621776 1999 25.8524648027023 2000 24.1652808310139 2001 24.7524373030774 2002 24.8534986504745 2003 25.288101152543 2004 26.9568655055943 2005 23.2353548711353 2006 24.2039302961647 2007 23.8850199113742 2008 20.8703946658693 2009 18.8416420287256 2010 19.2102067541625 2011 17.8238562597676 2012 18.2843730883016 2013 19.1597723243935 2014 20.5814973683151 2015 22.2656207252554 2016 22.558191150466 2017 23.1027689952789 2018 25.130970903743 2019 25.4770722552722 2020 24.0129859382095 2021 29.253443873315