| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 6.19404 |
| 2021 | 5.76286 |
| 2020 | 5.35894 |
| 2019 | 5.04755 |
| 2018 | 4.89604 |
| 2017 | 4.93257 |
| 2016 | 5.14507 |
| 2015 | 5.48136 |
| 2014 | 5.88493 |
| 2013 | 6.29099 |
| 2012 | 6.63313 |
| 2011 | 6.86806 |
| 2010 | 6.98033 |
| 2009 | 6.97605 |
| 2008 | 6.87689 |
| 2007 | 6.70601 |
| 2006 | 6.48821 |
| 2005 | 6.24818 |
| 2004 | 6.00256 |
| 2003 | 5.77235 |
| 2002 | 5.5679 |
| 2001 | 5.39289 |
| 2000 | 5.26328 |
| 1999 | 5.19483 |
| 1998 | 5.17988 |
| 1997 | 5.19928 |
| 1996 | 5.2633 |
| 1995 | 5.35904 |
| 1994 | 5.43852 |
| 1993 | 5.50976 |
| 1992 | 5.57011 |
| 1991 | 5.57456 |
| 1990 | 5.53677 |
| 1989 | 5.48775 |
| 1988 | 5.40036 |
| 1987 | 5.2784 |
| 1986 | 5.14712 |
| 1985 | 4.99948 |
| 1984 | 4.83985 |
| 1983 | 4.68073 |
| 1982 | 4.53439 |
| 1981 | 4.41277 |
| 1980 | 4.32359 |
| 1979 | 4.26655 |
| 1978 | 4.23466 |
| 1977 | 4.22542 |
| 1976 | 4.23438 |
| 1975 | 4.25379 |
| 1974 | 4.2792 |
| 1973 | 4.30824 |
| 1972 | 4.33629 |
| 1971 | 4.36169 |
| 1970 | 4.38764 |
| 1969 | 4.41583 |
| 1968 | 4.44446 |
| 1967 | 4.47383 |
| 1966 | 4.50416 |
| 1965 | 4.5362 |
| 1964 | 4.5714 |
| 1963 | 4.61051 |
| 1962 | 4.6533 |
| 1961 | 4.69767 |
| 1960 | 4.74432 |