| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 0.951515 |
| 2021 | 0.495366 |
| 2020 | 0.928545 |
| 2019 | 1.84074 |
| 2018 | 1.08629 |
| 2017 | -0.278072 |
| 2016 | 2.0174 |
| 2015 | -0.961111 |
| 2014 | 1.92611 |
| 2013 | 3.16169 |
| 2012 | 4.79031 |
| 2011 | 4.08352 |
| 2010 | -0.27889 |
| 2009 | 1.76574 |
| 2008 | 7.67121 |
| 2007 | 6.20414 |
| 2006 | 3.76748 |
| 2005 | 1.07903 |
| 2004 | 5.2374 |
| 2003 | 5.65356 |
| 2002 | 4.57145 |
| 2001 | 3.12249 |
| 2000 | 2.92854 |
| 1999 | 0.434468 |
| 1998 | -2.22047 |
| 1997 | 2.13628 |
| 1996 | 3.80518 |
| 1995 | -6.0089 |
| 1994 | 0.808852 |
| 1993 | 1.17218 |
| 1992 | 1.86513 |
| 1991 | 2.26047 |
| 1990 | 2.26233 |
| 1989 | 4.01642 |
| 1988 | 1.65742 |
| 1987 | 3.74091 |
| 1986 | 2.29167 |
| 1985 | 3.43815 |
| 1984 | 6.80602 |
| 1983 | 1.8122 |
| 1982 | 6.32273 |
| 1981 | 1.89382 |
| 1980 | 9.11553 |
| 1979 | 4.80251 |
| 1978 | 0.671627 |
| 1977 | 3.83087 |
| 1976 | 5.49758 |
| 1975 | 12.1014 |
| 1974 | 7.73902 |
| 1973 | 4.40193 |
| 1972 | -0.452376 |
| 1971 | 7.94869 |
| 1970 | 7.9481 |
| 1969 | 6.17523 |
| 1968 | 6.89952 |
| 1967 | 3.95909 |
| 1966 | 4.98221 |
| 1965 | 8.67973 |
| 1964 | 7.81343 |
| 1963 | 4.43143 |
| 1962 | 15.1614 |
| 1961 | 6.38907 |
| 1960 | - |