| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 1.55775 |
| 2021 | 1.72821 |
| 2020 | 1.9653 |
| 2019 | 2.04727 |
| 2018 | 1.9895 |
| 2017 | 1.16325 |
| 2016 | 1.76021 |
| 2015 | 2.87315 |
| 2014 | 2.38657 |
| 2013 | 2.18168 |
| 2012 | 2.16396 |
| 2011 | 2.10846 |
| 2010 | 2.05015 |
| 2009 | 2.05709 |
| 2008 | 2.01672 |
| 2007 | 1.90706 |
| 2006 | 1.86818 |
| 2005 | 1.86133 |
| 2004 | 1.86684 |
| 2003 | 1.86625 |
| 2002 | 1.82972 |
| 2001 | 1.72061 |
| 2000 | 1.81016 |
| 1999 | 1.96788 |
| 1998 | 2.10827 |
| 1997 | 2.25934 |
| 1996 | 2.403 |
| 1995 | 2.53461 |
| 1994 | 2.62944 |
| 1993 | 2.72109 |
| 1992 | 2.97265 |
| 1991 | 3.54702 |
| 1990 | 4.106 |
| 1989 | 4.39262 |
| 1988 | 4.51899 |
| 1987 | 4.56202 |
| 1986 | 4.3521 |
| 1985 | 3.53784 |
| 1984 | 3.13324 |
| 1983 | 3.02026 |
| 1982 | 2.91805 |
| 1981 | 2.91878 |
| 1980 | 2.79315 |
| 1979 | 2.78522 |
| 1978 | 2.82149 |
| 1977 | 2.80548 |
| 1976 | 2.81274 |
| 1975 | 2.88163 |
| 1974 | 2.9335 |
| 1973 | 2.97052 |
| 1972 | 2.98044 |
| 1971 | 3.04694 |
| 1970 | 3.23373 |
| 1969 | 3.29728 |
| 1968 | 3.32664 |
| 1967 | 3.32971 |
| 1966 | 3.3332 |
| 1965 | 3.33306 |
| 1964 | 3.30354 |
| 1963 | 3.27617 |
| 1962 | 3.21985 |
| 1961 | 3.17204 |
| 1960 | - |