| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 19.1469 |
| 2021 | 19.3513 |
| 2020 | 20.5749 |
| 2019 | 19.5801 |
| 2018 | 19.3522 |
| 2017 | 19.2361 |
| 2016 | 19.3076 |
| 2015 | 18.9851 |
| 2014 | 19.3141 |
| 2013 | 19.0814 |
| 2012 | 18.8205 |
| 2011 | 18.1951 |
| 2010 | 17.9961 |
| 2009 | 17.7936 |
| 2008 | 17.0725 |
| 2007 | 15.8865 |
| 2006 | 15.8607 |
| 2005 | 16.1489 |
| 2004 | 17.0044 |
| 2003 | 16.8663 |
| 2002 | 16.7804 |
| 2001 | 16.6219 |
| 2000 | 16.5672 |
| 1999 | 16.8105 |
| 1998 | 17.1 |
| 1997 | 17.4919 |
| 1996 | 17.4247 |
| 1995 | 16.5269 |
| 1994 | 18.1889 |
| 1993 | 18.1206 |
| 1992 | 17.9006 |
| 1991 | 17.67 |
| 1990 | 17.5889 |
| 1989 | 16.8214 |
| 1988 | 16.8469 |
| 1987 | 17.4057 |
| 1986 | 16.7804 |
| 1985 | 16.3262 |
| 1984 | 15.9488 |
| 1983 | 14.4055 |
| 1982 | 14.768 |
| 1981 | 13.2727 |
| 1980 | 12.7705 |
| 1979 | 13.376 |
| 1978 | 13.3167 |
| 1977 | 12.467 |
| 1976 | 12.7798 |
| 1975 | 12.0359 |
| 1974 | 10.6994 |
| 1973 | 10.2976 |
| 1972 | 11.0262 |
| 1971 | 11.6758 |
| 1970 | 10.7548 |
| 1969 | 10.309 |
| 1968 | 10.0801 |
| 1967 | 9.82214 |
| 1966 | 10.0187 |
| 1965 | 9.94108 |
| 1964 | 9.73068 |
| 1963 | 8.88688 |
| 1962 | 9.24394 |
| 1961 | 8.36115 |
| 1960 | 8.08129 |