| 年份 | 南非 |
|---|---|
| 2023 | - |
| 2022 | 0.739894 |
| 2021 | 0.809813 |
| 2020 | 0.957517 |
| 2019 | 0.884245 |
| 2018 | 0.897196 |
| 2017 | 0.943568 |
| 2016 | 0.971047 |
| 2015 | 1.00693 |
| 2014 | 1.02189 |
| 2013 | 1.02779 |
| 2012 | 1.03352 |
| 2011 | 1.00265 |
| 2010 | 1.00348 |
| 2009 | 1.0895 |
| 2008 | 1.03951 |
| 2007 | 1.05884 |
| 2006 | 1.15387 |
| 2005 | 1.23481 |
| 2004 | 1.35573 |
| 2003 | 1.46881 |
| 2002 | 1.52931 |
| 2001 | 1.48316 |
| 2000 | 1.38729 |
| 1999 | 1.27205 |
| 1998 | 1.38317 |
| 1997 | 1.58213 |
| 1996 | 1.75588 |
| 1995 | 2.11786 |
| 1994 | 2.56197 |
| 1993 | 2.49552 |
| 1992 | 2.81765 |
| 1991 | 3.22263 |
| 1990 | 3.89463 |
| 1989 | 4.35192 |
| 1988 | 4.62376 |
| 1987 | 4.19217 |
| 1986 | 3.82058 |
| 1985 | 3.69833 |
| 1984 | 3.69561 |
| 1983 | 3.60465 |
| 1982 | 3.61409 |
| 1981 | 3.63813 |
| 1980 | 3.30463 |
| 1979 | 3.86307 |
| 1978 | 4.5622 |
| 1977 | 5.26333 |
| 1976 | 4.72799 |
| 1975 | 3.87495 |
| 1974 | 3.0852 |
| 1973 | 2.64691 |
| 1972 | 2.37267 |
| 1971 | 2.45819 |
| 1970 | 2.33375 |
| 1969 | 2.60848 |
| 1968 | 2.76118 |
| 1967 | 2.78802 |
| 1966 | 2.70487 |
| 1965 | 2.63083 |
| 1964 | 2.69561 |
| 1963 | 2.06461 |
| 1962 | 2.25484 |
| 1961 | 1.46785 |
| 1960 | 0.950977 |