| 年份 | 南苏丹 |
|---|---|
| 2023 | - |
| 2022 | 15.0916 |
| 2021 | 14.7548 |
| 2020 | 14.45 |
| 2019 | 14.2518 |
| 2018 | 13.9927 |
| 2017 | 13.4802 |
| 2016 | 12.9134 |
| 2015 | 12.6087 |
| 2014 | 12.3445 |
| 2013 | 12.0827 |
| 2012 | 11.9745 |
| 2011 | 11.9178 |
| 2010 | 11.9742 |
| 2009 | 12.034 |
| 2008 | 12.1173 |
| 2007 | 12.3055 |
| 2006 | 12.4758 |
| 2005 | 12.5997 |
| 2004 | 12.7017 |
| 2003 | 12.6044 |
| 2002 | 12.2428 |
| 2001 | 11.8995 |
| 2000 | 11.7111 |
| 1999 | 11.5759 |
| 1998 | 11.5821 |
| 1997 | 11.8323 |
| 1996 | 12.0426 |
| 1995 | 12.0501 |
| 1994 | 12.0059 |
| 1993 | 12.0239 |
| 1992 | 12.1322 |
| 1991 | 12.3107 |
| 1990 | 12.4943 |
| 1989 | 12.6666 |
| 1988 | 12.5982 |
| 1987 | 12.4773 |
| 1986 | 12.5241 |
| 1985 | 12.5497 |
| 1984 | 12.5199 |
| 1983 | 12.4357 |
| 1982 | 12.317 |
| 1981 | 12.1871 |
| 1980 | 12.0789 |
| 1979 | 12.0228 |
| 1978 | 12.0119 |
| 1977 | 12.0304 |
| 1976 | 12.0782 |
| 1975 | 12.1449 |
| 1974 | 12.2053 |
| 1973 | 12.254 |
| 1972 | 12.2625 |
| 1971 | 12.217 |
| 1970 | 12.0999 |
| 1969 | 11.9132 |
| 1968 | 11.7111 |
| 1967 | 11.4909 |
| 1966 | 11.2422 |
| 1965 | 10.9999 |
| 1964 | 10.8836 |
| 1963 | 10.897 |
| 1962 | 11.0377 |
| 1961 | 11.3251 |
| 1960 | 11.679 |