| 年份 | 南苏丹 |
|---|---|
| 2023 | - |
| 2022 | 14.43 |
| 2021 | 14.1004 |
| 2020 | 13.8001 |
| 2019 | 13.5945 |
| 2018 | 13.3298 |
| 2017 | 12.8442 |
| 2016 | 12.3199 |
| 2015 | 12.032 |
| 2014 | 11.7838 |
| 2013 | 11.5384 |
| 2012 | 11.421 |
| 2011 | 11.3486 |
| 2010 | 11.3839 |
| 2009 | 11.429 |
| 2008 | 11.5049 |
| 2007 | 11.6861 |
| 2006 | 11.8602 |
| 2005 | 11.9961 |
| 2004 | 12.1158 |
| 2003 | 12.0481 |
| 2002 | 11.7187 |
| 2001 | 11.3924 |
| 2000 | 11.2076 |
| 1999 | 11.0699 |
| 1998 | 11.064 |
| 1997 | 11.3006 |
| 1996 | 11.516 |
| 1995 | 11.5437 |
| 1994 | 11.5205 |
| 1993 | 11.5444 |
| 1992 | 11.641 |
| 1991 | 11.797 |
| 1990 | 11.952 |
| 1989 | 12.0902 |
| 1988 | 12.0091 |
| 1987 | 11.8751 |
| 1986 | 11.8852 |
| 1985 | 11.8764 |
| 1984 | 11.819 |
| 1983 | 11.7151 |
| 1982 | 11.5823 |
| 1981 | 11.4403 |
| 1980 | 11.3167 |
| 1979 | 11.2376 |
| 1978 | 11.2005 |
| 1977 | 11.192 |
| 1976 | 11.2119 |
| 1975 | 11.2539 |
| 1974 | 11.2986 |
| 1973 | 11.3413 |
| 1972 | 11.3737 |
| 1971 | 11.3851 |
| 1970 | 11.3622 |
| 1969 | 11.3029 |
| 1968 | 11.2268 |
| 1967 | 11.1311 |
| 1966 | 11.0096 |
| 1965 | 10.8772 |
| 1964 | 10.8041 |
| 1963 | 10.8292 |
| 1962 | 10.9871 |
| 1961 | 11.2749 |
| 1960 | 11.6206 |