| 年份 | 南苏丹 |
|---|---|
| 2023 | - |
| 2022 | 8.53816 |
| 2021 | 7.79964 |
| 2020 | 7.17399 |
| 2019 | 6.64613 |
| 2018 | 6.45837 |
| 2017 | 6.92461 |
| 2016 | 7.71571 |
| 2015 | 8.27172 |
| 2014 | 8.78882 |
| 2013 | 9.128 |
| 2012 | 9.03269 |
| 2011 | 8.86403 |
| 2010 | 8.65508 |
| 2009 | 8.4687 |
| 2008 | 8.45964 |
| 2007 | 8.57277 |
| 2006 | 8.63752 |
| 2005 | 8.60083 |
| 2004 | 8.54071 |
| 2003 | 8.53027 |
| 2002 | 8.58421 |
| 2001 | 8.66653 |
| 2000 | 8.72928 |
| 1999 | 8.76998 |
| 1998 | 8.73555 |
| 1997 | 8.6894 |
| 1996 | 8.71437 |
| 1995 | 8.73908 |
| 1994 | 8.73037 |
| 1993 | 8.68355 |
| 1992 | 8.60935 |
| 1991 | 8.53061 |
| 1990 | 8.463 |
| 1989 | 8.4451 |
| 1988 | 8.30433 |
| 1987 | 8.17433 |
| 1986 | 8.22169 |
| 1985 | 8.2893 |
| 1984 | 8.35011 |
| 1983 | 8.39661 |
| 1982 | 8.43021 |
| 1981 | 8.44934 |
| 1980 | 8.45737 |
| 1979 | 8.45408 |
| 1978 | 8.43915 |
| 1977 | 8.41006 |
| 1976 | 8.36439 |
| 1975 | 8.30389 |
| 1974 | 8.27146 |
| 1973 | 8.31616 |
| 1972 | 8.45897 |
| 1971 | 8.68727 |
| 1970 | 8.94885 |
| 1969 | 9.17566 |
| 1968 | 9.3216 |
| 1967 | 9.35708 |
| 1966 | 9.29897 |
| 1965 | 9.21689 |
| 1964 | 9.14721 |
| 1963 | 9.0839 |
| 1962 | 9.03534 |
| 1961 | 9.01611 |
| 1960 | 9.01453 |