| 年份 | 南苏丹  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 13.5378 | 
| 2021 | 14.1442 | 
| 2020 | 14.9725 | 
| 2019 | 16.0549 | 
| 2018 | 17.1622 | 
| 2017 | 17.6893 | 
| 2016 | 17.6618 | 
| 2015 | 17.6232 | 
| 2014 | 17.4172 | 
| 2013 | 17.1272 | 
| 2012 | 17.0647 | 
| 2011 | 17.0449 | 
| 2010 | 17.2252 | 
| 2009 | 17.5369 | 
| 2008 | 17.9012 | 
| 2007 | 18.4403 | 
| 2006 | 19.0861 | 
| 2005 | 19.7045 | 
| 2004 | 20.221 | 
| 2003 | 20.5223 | 
| 2002 | 20.6078 | 
| 2001 | 20.6646 | 
| 2000 | 20.7708 | 
| 1999 | 20.9081 | 
| 1998 | 21.3144 | 
| 1997 | 21.6971 | 
| 1996 | 21.7434 | 
| 1995 | 21.7424 | 
| 1994 | 21.8008 | 
| 1993 | 21.4927 | 
| 1992 | 20.6657 | 
| 1991 | 19.9154 | 
| 1990 | 19.4347 | 
| 1989 | 18.9817 | 
| 1988 | 19.6458 | 
| 1987 | 20.2686 | 
| 1986 | 19.7842 | 
| 1985 | 19.3728 | 
| 1984 | 19.0528 | 
| 1983 | 18.8821 | 
| 1982 | 18.8905 | 
| 1981 | 19.0035 | 
| 1980 | 19.1177 | 
| 1979 | 19.2277 | 
| 1978 | 19.3314 | 
| 1977 | 19.4188 | 
| 1976 | 19.4769 | 
| 1975 | 19.4871 | 
| 1974 | 19.4348 | 
| 1973 | 19.3275 | 
| 1972 | 19.1844 | 
| 1971 | 19.0147 | 
| 1970 | 18.8431 | 
| 1969 | 18.6989 | 
| 1968 | 18.5621 | 
| 1967 | 18.4243 | 
| 1966 | 18.2983 | 
| 1965 | 18.1772 | 
| 1964 | 18.0409 | 
| 1963 | 17.9046 | 
| 1962 | 17.7581 | 
| 1961 | 17.5817 | 
| 1960 | 17.3954 |