| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 19.821 |
| 2020 | 20.326 |
| 2019 | 21.276 |
| 2018 | 21.137 |
| 2017 | 20.643 |
| 2016 | 20.25 |
| 2015 | 21.3 |
| 2014 | 22.057 |
| 2013 | 22.177 |
| 2012 | 22.353 |
| 2011 | 22.282 |
| 2010 | 22.274 |
| 2009 | 22.664 |
| 2008 | 24.08 |
| 2007 | 22.629 |
| 2006 | 22.455 |
| 2005 | 21.913 |
| 2004 | 21.261 |
| 2003 | 20.473 |
| 2002 | 20.04 |
| 2001 | 20.392 |
| 2000 | 20.705 |
| 1999 | 21.848 |
| 1998 | 22.41 |
| 1997 | 23.29 |
| 1996 | 25.214 |
| 1995 | 26.457 |
| 1994 | 27.065 |
| 1993 | 27.866 |
| 1992 | 28.723 |
| 1991 | 30.127 |
| 1990 | 31.146 |
| 1989 | 33.297 |
| 1988 | 34.899 |
| 1987 | 36.225 |
| 1986 | 36.482 |
| 1985 | 35.73 |
| 1984 | 35.231 |
| 1983 | 34.604 |
| 1982 | 34.366 |
| 1981 | 33.886 |
| 1980 | 34.29 |
| 1979 | 34.541 |
| 1978 | 34.776 |
| 1977 | 35.375 |
| 1976 | 36.175 |
| 1975 | 36.95 |
| 1974 | 37.58 |
| 1973 | 38.296 |
| 1972 | 38.744 |
| 1971 | 39.195 |
| 1970 | 39.376 |
| 1969 | 39.665 |
| 1968 | 39.778 |
| 1967 | 39.947 |
| 1966 | 39.972 |
| 1965 | 40.014 |
| 1964 | 40.072 |
| 1963 | 40.028 |
| 1962 | 39.963 |
| 1961 | 39.911 |
| 1960 | 39.52 |