| 年份 | 斯威士兰 |
|---|---|
| 2023 | - |
| 2022 | 4.0013 |
| 2021 | 3.99351 |
| 2020 | 3.94772 |
| 2019 | 3.84512 |
| 2018 | 3.71311 |
| 2017 | 3.58202 |
| 2016 | 3.45091 |
| 2015 | 3.31968 |
| 2014 | 3.19217 |
| 2013 | 3.08128 |
| 2012 | 2.98414 |
| 2011 | 2.89165 |
| 2010 | 2.80793 |
| 2009 | 2.73284 |
| 2008 | 2.66821 |
| 2007 | 2.61515 |
| 2006 | 2.56858 |
| 2005 | 2.52396 |
| 2004 | 2.48174 |
| 2003 | 2.44192 |
| 2002 | 2.40439 |
| 2001 | 2.37278 |
| 2000 | 2.3494 |
| 1999 | 2.33299 |
| 1998 | 2.32272 |
| 1997 | 2.32045 |
| 1996 | 2.33112 |
| 1995 | 2.35231 |
| 1994 | 2.32386 |
| 1993 | 2.29147 |
| 1992 | 2.32137 |
| 1991 | 2.37156 |
| 1990 | 2.42795 |
| 1989 | 2.46812 |
| 1988 | 2.52117 |
| 1987 | 2.59283 |
| 1986 | 2.64521 |
| 1985 | 2.69554 |
| 1984 | 2.73644 |
| 1983 | 2.76519 |
| 1982 | 2.78908 |
| 1981 | 2.79726 |
| 1980 | 2.80254 |
| 1979 | 2.81648 |
| 1978 | 2.82907 |
| 1977 | 2.84044 |
| 1976 | 2.84895 |
| 1975 | 2.85604 |
| 1974 | 2.86137 |
| 1973 | 2.86269 |
| 1972 | 2.85897 |
| 1971 | 2.85209 |
| 1970 | 2.84421 |
| 1969 | 2.83622 |
| 1968 | 2.82832 |
| 1967 | 2.82396 |
| 1966 | 2.82668 |
| 1965 | 2.83441 |
| 1964 | 2.84164 |
| 1963 | 2.84526 |
| 1962 | 2.84515 |
| 1961 | 2.84216 |
| 1960 | 2.83874 |