| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 1.45686 |
| 2021 | 1.47888 |
| 2020 | 1.47598 |
| 2019 | 1.44845 |
| 2018 | 1.41982 |
| 2017 | 1.39345 |
| 2016 | 1.36223 |
| 2015 | 1.34741 |
| 2014 | 1.34906 |
| 2013 | 1.3422 |
| 2012 | 1.3253 |
| 2011 | 1.30186 |
| 2010 | 1.26952 |
| 2009 | 1.22485 |
| 2008 | 1.17389 |
| 2007 | 1.11896 |
| 2006 | 1.06238 |
| 2005 | 1.00593 |
| 2004 | 0.952651 |
| 2003 | 0.908279 |
| 2002 | 0.873744 |
| 2001 | 0.844412 |
| 2000 | 0.816231 |
| 1999 | 0.789022 |
| 1998 | 0.765046 |
| 1997 | 0.742274 |
| 1996 | 0.722905 |
| 1995 | 0.709078 |
| 1994 | 0.699673 |
| 1993 | 0.69222 |
| 1992 | 0.684348 |
| 1991 | 0.674508 |
| 1990 | 0.665721 |
| 1989 | 0.660091 |
| 1988 | 0.654252 |
| 1987 | 0.64734 |
| 1986 | 0.639246 |
| 1985 | 0.635744 |
| 1984 | 0.635415 |
| 1983 | 0.630546 |
| 1982 | 0.622594 |
| 1981 | 0.61213 |
| 1980 | 0.598042 |
| 1979 | 0.581864 |
| 1978 | 0.566185 |
| 1977 | 0.551271 |
| 1976 | 0.538997 |
| 1975 | 0.529324 |
| 1974 | 0.521111 |
| 1973 | 0.51394 |
| 1972 | 0.507871 |
| 1971 | 0.503293 |
| 1970 | 0.501455 |
| 1969 | 0.502587 |
| 1968 | 0.505143 |
| 1967 | 0.508385 |
| 1966 | 0.512122 |
| 1965 | 0.516438 |
| 1964 | 0.521301 |
| 1963 | 0.526584 |
| 1962 | 0.532371 |
| 1961 | 0.538775 |
| 1960 | 0.545742 |