| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 3.24124 |
| 2020 | 2.98129 |
| 2019 | 3.39332 |
| 2018 | 3.65719 |
| 2017 | 3.39463 |
| 2016 | 3.26498 |
| 2015 | 3.48842 |
| 2014 | 3.37036 |
| 2013 | 4.11877 |
| 2012 | 4.07159 |
| 2011 | 3.88135 |
| 2010 | 3.39536 |
| 2009 | 2.66336 |
| 2008 | 3.15526 |
| 2007 | 4.12097 |
| 2006 | 4.22811 |
| 2005 | 3.82982 |
| 2004 | 3.25625 |
| 2003 | 2.35617 |
| 2002 | 2.73369 |
| 2001 | 2.7372 |
| 2000 | 2.95883 |
| 1999 | 2.61564 |
| 1998 | 2.64407 |
| 1997 | 2.52736 |
| 1996 | 3.83612 |
| 1995 | 4.11141 |
| 1994 | 1.69782 |
| 1993 | 3.50905 |
| 1992 | 2.32828 |
| 1991 | 3.71667 |
| 1990 | 3.61239 |
| 1989 | 8.80543 |
| 1988 | 5.89588 |
| 1987 | 3.79491 |
| 1986 | 3.7545 |
| 1985 | 2.89457 |
| 1984 | 2.49679 |
| 1983 | 3.26377 |
| 1982 | 4.88046 |
| 1981 | 4.47798 |
| 1980 | 3.29212 |
| 1979 | 4.93311 |
| 1978 | 6.25279 |
| 1977 | 8.02737 |
| 1976 | 4.73834 |
| 1975 | 5.24382 |
| 1974 | 4.96676 |
| 1973 | 4.73118 |
| 1972 | 4.6434 |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |