| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 1.39419 |
| 2021 | 1.37591 |
| 2020 | 1.35147 |
| 2019 | 1.31505 |
| 2018 | 1.27373 |
| 2017 | 1.23163 |
| 2016 | 1.18245 |
| 2015 | 1.13955 |
| 2014 | 1.10954 |
| 2013 | 1.08591 |
| 2012 | 1.07637 |
| 2011 | 1.0839 |
| 2010 | 1.10362 |
| 2009 | 1.13008 |
| 2008 | 1.15704 |
| 2007 | 1.17696 |
| 2006 | 1.18592 |
| 2005 | 1.17895 |
| 2004 | 1.15224 |
| 2003 | 1.10939 |
| 2002 | 1.05426 |
| 2001 | 0.989333 |
| 2000 | 0.924179 |
| 1999 | 0.870264 |
| 1998 | 0.832056 |
| 1997 | 0.807922 |
| 1996 | 0.797841 |
| 1995 | 0.798352 |
| 1994 | 0.798693 |
| 1993 | 0.794685 |
| 1992 | 0.788014 |
| 1991 | 0.777879 |
| 1990 | 0.767107 |
| 1989 | 0.762392 |
| 1988 | 0.762994 |
| 1987 | 0.764834 |
| 1986 | 0.766281 |
| 1985 | 0.774279 |
| 1984 | 0.786574 |
| 1983 | 0.793366 |
| 1982 | 0.795386 |
| 1981 | 0.792084 |
| 1980 | 0.781048 |
| 1979 | 0.763365 |
| 1978 | 0.74398 |
| 1977 | 0.724143 |
| 1976 | 0.705468 |
| 1975 | 0.688491 |
| 1974 | 0.673116 |
| 1973 | 0.659229 |
| 1972 | 0.64671 |
| 1971 | 0.6363 |
| 1970 | 0.629496 |
| 1969 | 0.626061 |
| 1968 | 0.624004 |
| 1967 | 0.623481 |
| 1966 | 0.625081 |
| 1965 | 0.629063 |
| 1964 | 0.635417 |
| 1963 | 0.643286 |
| 1962 | 0.651622 |
| 1961 | 0.659531 |
| 1960 | 0.66581 |