| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 1.19014 |
| 2021 | 1.20411 |
| 2020 | 1.2043 |
| 2019 | 1.18839 |
| 2018 | 1.15666 |
| 2017 | 1.12089 |
| 2016 | 1.08031 |
| 2015 | 1.05089 |
| 2014 | 1.03706 |
| 2013 | 1.01578 |
| 2012 | 0.98852 |
| 2011 | 0.956574 |
| 2010 | 0.919522 |
| 2009 | 0.878294 |
| 2008 | 0.838128 |
| 2007 | 0.803532 |
| 2006 | 0.779488 |
| 2005 | 0.768027 |
| 2004 | 0.769195 |
| 2003 | 0.781562 |
| 2002 | 0.80003 |
| 2001 | 0.821036 |
| 2000 | 0.842324 |
| 1999 | 0.864182 |
| 1998 | 0.886666 |
| 1997 | 0.907559 |
| 1996 | 0.922793 |
| 1995 | 0.931839 |
| 1994 | 0.937733 |
| 1993 | 0.939071 |
| 1992 | 0.93668 |
| 1991 | 0.937957 |
| 1990 | 0.946799 |
| 1989 | 0.960477 |
| 1988 | 0.975823 |
| 1987 | 0.991181 |
| 1986 | 1.00569 |
| 1985 | 1.00474 |
| 1984 | 0.991244 |
| 1983 | 0.980003 |
| 1982 | 0.969923 |
| 1981 | 0.961093 |
| 1980 | 0.957953 |
| 1979 | 0.960246 |
| 1978 | 0.961887 |
| 1977 | 0.962393 |
| 1976 | 0.9589 |
| 1975 | 0.952187 |
| 1974 | 0.94406 |
| 1973 | 0.931836 |
| 1972 | 0.915451 |
| 1971 | 0.895742 |
| 1970 | 0.871542 |
| 1969 | 0.844808 |
| 1968 | 0.820992 |
| 1967 | 0.802422 |
| 1966 | 0.789498 |
| 1965 | 0.783401 |
| 1964 | 0.783876 |
| 1963 | 0.790192 |
| 1962 | 0.801005 |
| 1961 | 0.813853 |
| 1960 | 0.826437 |