| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 2.01616 |
| 2021 | 6.13801 |
| 2020 | 4.36786 |
| 2019 | 0.506262 |
| 2018 | 0.508529 |
| 2017 | 1.14422 |
| 2016 | 0.450919 |
| 2015 | -1.2994 |
| 2014 | -1.49834 |
| 2013 | -2.11647 |
| 2012 | -1.30432 |
| 2011 | 0.759947 |
| 2010 | 1.16075 |
| 2009 | 0.377958 |
| 2008 | -1.46518 |
| 2007 | -1.20721 |
| 2006 | -1.57164 |
| 2005 | -0.228252 |
| 2004 | -0.128538 |
| 2003 | 2.10668 |
| 2002 | 3.39683 |
| 2001 | 3.54238 |
| 2000 | 2.58788 |
| 1999 | 2.28014 |
| 1998 | 1.0028 |
| 1997 | 1.01985 |
| 1996 | 1.35023 |
| 1995 | 0.597687 |
| 1994 | 1.98407 |
| 1993 | 4.13061 |
| 1992 | 3.58894 |
| 1991 | 3.80002 |
| 1990 | 4.86528 |
| 1989 | 4.71392 |
| 1988 | 5.75368 |
| 1987 | 8.8115 |
| 1986 | 7.84641 |
| 1985 | 7.8575 |
| 1984 | 1.60454 |
| 1983 | 3.2795 |
| 1982 | -0.366654 |
| 1981 | -1.78617 |
| 1980 | 7.23466 |
| 1979 | 8.3798 |
| 1978 | 5.89848 |
| 1977 | 4.3561 |
| 1976 | -1.05357 |
| 1975 | -2.12417 |
| 1974 | -0.487146 |
| 1973 | 2.22241 |
| 1972 | 2.14369 |
| 1971 | -3.54157 |
| 1970 | -2.98232 |
| 1969 | 0.465285 |
| 1968 | 2.62426 |
| 1967 | 0.300858 |
| 1966 | 1.86189 |
| 1965 | -0.931976 |
| 1964 | 1.66276 |
| 1963 | 4.70786 |
| 1962 | 7.57489 |
| 1961 | 6.93475 |
| 1960 | 4.32069 |