| 年份 | 南苏丹 |
|---|---|
| 2023 | - |
| 2022 | 4.58849 |
| 2021 | 4.84549 |
| 2020 | 5.01674 |
| 2019 | 5.13269 |
| 2018 | 5.2898 |
| 2017 | 5.56931 |
| 2016 | 5.86887 |
| 2015 | 6.03444 |
| 2014 | 6.14177 |
| 2013 | 6.19486 |
| 2012 | 6.14612 |
| 2011 | 6.06331 |
| 2010 | 5.93327 |
| 2009 | 5.78811 |
| 2008 | 5.64635 |
| 2007 | 5.48318 |
| 2006 | 5.31419 |
| 2005 | 5.1585 |
| 2004 | 5.03438 |
| 2003 | 4.94138 |
| 2002 | 4.87306 |
| 2001 | 4.82513 |
| 2000 | 4.78956 |
| 1999 | 4.75931 |
| 1998 | 4.73297 |
| 1997 | 4.72589 |
| 1996 | 4.74376 |
| 1995 | 4.76516 |
| 1994 | 4.7621 |
| 1993 | 4.76174 |
| 1992 | 4.7754 |
| 1991 | 4.75688 |
| 1990 | 4.70448 |
| 1989 | 4.67824 |
| 1988 | 4.61533 |
| 1987 | 4.61303 |
| 1986 | 4.74036 |
| 1985 | 4.88537 |
| 1984 | 5.0155 |
| 1983 | 5.09199 |
| 1982 | 5.11491 |
| 1981 | 5.09983 |
| 1980 | 5.07978 |
| 1979 | 5.06524 |
| 1978 | 5.06214 |
| 1977 | 5.07155 |
| 1976 | 5.09057 |
| 1975 | 5.11548 |
| 1974 | 5.14448 |
| 1973 | 5.17689 |
| 1972 | 5.21622 |
| 1971 | 5.26201 |
| 1970 | 5.31471 |
| 1969 | 5.37218 |
| 1968 | 5.426 |
| 1967 | 5.47567 |
| 1966 | 5.52175 |
| 1965 | 5.55927 |
| 1964 | 5.58399 |
| 1963 | 5.60142 |
| 1962 | 5.61533 |
| 1961 | 5.62376 |
| 1960 | 5.62662 |