| 年份 | 南苏丹 |
|---|---|
| 2023 | - |
| 2022 | 4.97483 |
| 2021 | 5.2623 |
| 2020 | 5.45427 |
| 2019 | 5.58414 |
| 2018 | 5.73592 |
| 2017 | 5.97215 |
| 2016 | 6.21152 |
| 2015 | 6.33732 |
| 2014 | 6.4098 |
| 2013 | 6.43529 |
| 2012 | 6.37988 |
| 2011 | 6.2942 |
| 2010 | 6.16833 |
| 2009 | 6.02713 |
| 2008 | 5.88516 |
| 2007 | 5.72442 |
| 2006 | 5.55855 |
| 2005 | 5.40477 |
| 2004 | 5.28013 |
| 2003 | 5.18516 |
| 2002 | 5.11404 |
| 2001 | 5.06324 |
| 2000 | 5.02654 |
| 1999 | 4.99681 |
| 1998 | 4.95978 |
| 1997 | 4.93917 |
| 1996 | 4.95274 |
| 1995 | 4.97274 |
| 1994 | 4.98041 |
| 1993 | 4.99135 |
| 1992 | 5.01237 |
| 1991 | 5.01871 |
| 1990 | 5.00944 |
| 1989 | 5.02468 |
| 1988 | 4.99382 |
| 1987 | 5.02918 |
| 1986 | 5.21052 |
| 1985 | 5.41264 |
| 1984 | 5.60183 |
| 1983 | 5.73389 |
| 1982 | 5.78477 |
| 1981 | 5.772 |
| 1980 | 5.74083 |
| 1979 | 5.70773 |
| 1978 | 5.68156 |
| 1977 | 5.66755 |
| 1976 | 5.66792 |
| 1975 | 5.68084 |
| 1974 | 5.70462 |
| 1973 | 5.74035 |
| 1972 | 5.77871 |
| 1971 | 5.80782 |
| 1970 | 5.81841 |
| 1969 | 5.80965 |
| 1968 | 5.78652 |
| 1967 | 5.7495 |
| 1966 | 5.70609 |
| 1965 | 5.66631 |
| 1964 | 5.63211 |
| 1963 | 5.59202 |
| 1962 | 5.55369 |
| 1961 | 5.52469 |
| 1960 | 5.4975 |