| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 3.35132 |
| 2021 | 3.2673 |
| 2020 | 3.2084 |
| 2019 | 3.1787 |
| 2018 | 3.17777 |
| 2017 | 3.19951 |
| 2016 | 3.22007 |
| 2015 | 3.24688 |
| 2014 | 3.27535 |
| 2013 | 3.28206 |
| 2012 | 3.2672 |
| 2011 | 3.22803 |
| 2010 | 3.1697 |
| 2009 | 3.09591 |
| 2008 | 3.00115 |
| 2007 | 2.89344 |
| 2006 | 2.79175 |
| 2005 | 2.69689 |
| 2004 | 2.60686 |
| 2003 | 2.51858 |
| 2002 | 2.43026 |
| 2001 | 2.34293 |
| 2000 | 2.26088 |
| 1999 | 2.19551 |
| 1998 | 2.15911 |
| 1997 | 2.15808 |
| 1996 | 2.1744 |
| 1995 | 2.19614 |
| 1994 | 2.22635 |
| 1993 | 2.25285 |
| 1992 | 2.268 |
| 1991 | 2.29326 |
| 1990 | 2.33038 |
| 1989 | 2.35685 |
| 1988 | 2.3687 |
| 1987 | 2.36244 |
| 1986 | 2.33641 |
| 1985 | 2.27274 |
| 1984 | 2.21019 |
| 1983 | 2.20087 |
| 1982 | 2.21672 |
| 1981 | 2.23771 |
| 1980 | 2.25201 |
| 1979 | 2.25323 |
| 1978 | 2.24993 |
| 1977 | 2.24499 |
| 1976 | 2.24262 |
| 1975 | 2.24144 |
| 1974 | 2.23885 |
| 1973 | 2.23606 |
| 1972 | 2.23314 |
| 1971 | 2.229 |
| 1970 | 2.22778 |
| 1969 | 2.22762 |
| 1968 | 2.22148 |
| 1967 | 2.2098 |
| 1966 | 2.1918 |
| 1965 | 2.16703 |
| 1964 | 2.13617 |
| 1963 | 2.10313 |
| 1962 | 2.07147 |
| 1961 | 2.0428 |
| 1960 | 2.01305 |