Annual % of GNI
1960 28.90404124397805
1961 29.775458570537634
1962 30.210945567234106
1963 31.826641850598243
1964 30.415860735062868
1965 31.26797964157999
1966 31.307793923446805
1967 33.02367941719126
1968 31.408581303326308
1969 30.71959180617093
1970 28.71543386460973
1971 27.115287076892663
1972 27.88118262766386
1973 31.30053579727218
1974 33.26232348115251
1975 27.521480888548727
1976 26.72796355536331
1977 27.033372904625406
1978 27.539487698584423
1979 28.859260367635223
1980 31.30153182070371
1981 27.370168722635793
1982 24.19941173646106
1983 23.2418140048843
1984 21.968716240106197
1985 22.142372380823375
1986 20.8369194481114
1987 18.926687995570187
1988 18.852312617211847
1989 19.59993465339897
1990 15.043253234495602
1991 15.281633859410121
1992 15.067284512036718
1993 16.109552812239315
1994 15.617718174062361
1995 17.007622143350925
1996 15.97214546710969
1997 15.161130845187982
1998 15.082603685006635
1999 14.725292744097082
2000 15.429810731001048
2001 15.178753018837453
2002 18.34260058278556
2003 18.826051757502373
2004 17.27234820439218
2005 18.006122552819242
2006 18.417901828049704
2007 17.520854254378744
2008 16.798833650554453
2009 17.733855036902643
2010 17.483018918327907
2011 16.48779747748752
2012 13.844241662442613
2013 14.180656902999608
2014 14.029706572580292
2015 14.624014229009626
2016 14.663652802923938
2017 14.649882150464165
2018 13.610341704179708
2019 13.554355267338915
2020 14.72038368488095
2021 16.658719964846803
2022 15.186794611677978
2023 13.81812655330647