| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 4.7059 |
| 2021 | 4.54597 |
| 2020 | 4.37309 |
| 2019 | 4.1953 |
| 2018 | 4.03091 |
| 2017 | 3.88973 |
| 2016 | 3.76104 |
| 2015 | 3.67761 |
| 2014 | 3.65506 |
| 2013 | 3.66287 |
| 2012 | 3.69215 |
| 2011 | 3.7346 |
| 2010 | 3.77316 |
| 2009 | 3.79283 |
| 2008 | 3.79981 |
| 2007 | 3.78528 |
| 2006 | 3.73714 |
| 2005 | 3.66447 |
| 2004 | 3.5721 |
| 2003 | 3.45088 |
| 2002 | 3.3152 |
| 2001 | 3.18816 |
| 2000 | 3.06446 |
| 1999 | 2.94813 |
| 1998 | 2.84269 |
| 1997 | 2.74387 |
| 1996 | 2.65597 |
| 1995 | 2.58163 |
| 1994 | 2.51968 |
| 1993 | 2.47649 |
| 1992 | 2.46021 |
| 1991 | 2.47658 |
| 1990 | 2.50557 |
| 1989 | 2.5355 |
| 1988 | 2.5771 |
| 1987 | 2.62925 |
| 1986 | 2.68958 |
| 1985 | 2.71819 |
| 1984 | 2.71365 |
| 1983 | 2.70557 |
| 1982 | 2.69421 |
| 1981 | 2.68643 |
| 1980 | 2.68025 |
| 1979 | 2.67553 |
| 1978 | 2.66779 |
| 1977 | 2.65742 |
| 1976 | 2.65823 |
| 1975 | 2.66786 |
| 1974 | 2.67395 |
| 1973 | 2.67866 |
| 1972 | 2.68232 |
| 1971 | 2.68769 |
| 1970 | 2.69924 |
| 1969 | 2.71414 |
| 1968 | 2.72579 |
| 1967 | 2.73411 |
| 1966 | 2.73981 |
| 1965 | 2.74226 |
| 1964 | 2.74075 |
| 1963 | 2.73477 |
| 1962 | 2.72227 |
| 1961 | 2.70273 |
| 1960 | 2.67426 |