| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.340453 |
| 2020 | 0.340453 |
| 2019 | 0.340453 |
| 2018 | 0.340453 |
| 2017 | 0.340453 |
| 2016 | 0.340453 |
| 2015 | 0.340453 |
| 2014 | 0.340453 |
| 2013 | 0.340453 |
| 2012 | 0.340453 |
| 2011 | 0.340453 |
| 2010 | 0.354467 |
| 2009 | 0.329736 |
| 2008 | 0.31325 |
| 2007 | 0.298411 |
| 2006 | 0.296763 |
| 2005 | 0.31325 |
| 2004 | 0.31325 |
| 2003 | 0.329736 |
| 2002 | 0.329736 |
| 2001 | 0.329736 |
| 2000 | 0.317371 |
| 1999 | 0.305006 |
| 1998 | 0.296763 |
| 1997 | 0.284398 |
| 1996 | 0.280276 |
| 1995 | 0.263789 |
| 1994 | 0.259667 |
| 1993 | 0.255546 |
| 1992 | 0.255546 |
| 1991 | 0.251424 |
| 1990 | 0.247302 |
| 1989 | 0.247302 |
| 1988 | 0.247302 |
| 1987 | 0.247302 |
| 1986 | 0.247302 |
| 1985 | 0.247302 |
| 1984 | 0.247302 |
| 1983 | 0.247302 |
| 1982 | 0.247302 |
| 1981 | 0.247302 |
| 1980 | 0.247302 |
| 1979 | 0.247302 |
| 1978 | 0.247302 |
| 1977 | 0.230816 |
| 1976 | 0.230816 |
| 1975 | 0.226694 |
| 1974 | 0.226694 |
| 1973 | 0.222572 |
| 1972 | 0.21845 |
| 1971 | 0.214329 |
| 1970 | 0.206085 |
| 1969 | 0.206085 |
| 1968 | 0.197842 |
| 1967 | 0.189598 |
| 1966 | 0.177233 |
| 1965 | 0.173112 |
| 1964 | 0.164868 |
| 1963 | 0.160747 |
| 1962 | 0.152503 |
| 1961 | 0.152503 |
| 1960 | - |