| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 1.91041 |
| 2021 | 4.70306 |
| 2020 | -5.96336 |
| 2019 | 0.259936 |
| 2018 | 1.55678 |
| 2017 | 1.15795 |
| 2016 | 0.664552 |
| 2015 | 1.32186 |
| 2014 | 1.41383 |
| 2013 | 2.48547 |
| 2012 | 2.39623 |
| 2011 | 3.16856 |
| 2010 | 3.03973 |
| 2009 | -1.53809 |
| 2008 | 3.19104 |
| 2007 | 5.36047 |
| 2006 | 5.60381 |
| 2005 | 5.27705 |
| 2004 | 4.55456 |
| 2003 | 2.94908 |
| 2002 | 3.70037 |
| 2001 | 2.7 |
| 2000 | 4.2 |
| 1999 | 2.4 |
| 1998 | 0.5 |
| 1997 | 2.6 |
| 1996 | 4.3 |
| 1995 | 3.1 |
| 1994 | 3.2 |
| 1993 | 1.23356 |
| 1992 | -2.13703 |
| 1991 | -1.01824 |
| 1990 | -0.31776 |
| 1989 | 2.3948 |
| 1988 | 4.20011 |
| 1987 | 2.10073 |
| 1986 | 0.0178492 |
| 1985 | -1.21154 |
| 1984 | 5.09915 |
| 1983 | -1.84656 |
| 1982 | -0.383419 |
| 1981 | 5.36079 |
| 1980 | 6.62058 |
| 1979 | 3.79052 |
| 1978 | 3.01448 |
| 1977 | -0.0939791 |
| 1976 | 2.24986 |
| 1975 | 1.69543 |
| 1974 | 6.11112 |
| 1973 | 4.57194 |
| 1972 | 1.65483 |
| 1971 | 4.27893 |
| 1970 | 5.24866 |
| 1969 | 4.7159 |
| 1968 | 4.15337 |
| 1967 | 7.19652 |
| 1966 | 4.43839 |
| 1965 | 6.1228 |
| 1964 | 7.93961 |
| 1963 | 7.37371 |
| 1962 | 6.17793 |
| 1961 | 3.84473 |
| 1960 | - |