| 年份 | 斯威士兰 |
|---|---|
| 2023 | - |
| 2022 | 1.63078 |
| 2021 | 1.79509 |
| 2020 | 1.72874 |
| 2019 | 1.55036 |
| 2018 | 1.51557 |
| 2017 | 1.47806 |
| 2016 | 1.43474 |
| 2015 | 1.36465 |
| 2014 | 1.32247 |
| 2013 | 1.27086 |
| 2012 | 1.2023 |
| 2011 | 1.46817 |
| 2010 | 1.433 |
| 2009 | 1.43885 |
| 2008 | 1.52407 |
| 2007 | 0.209832 |
| 2006 | -0.038107 |
| 2005 | -0.00634976 |
| 2004 | 0.0711403 |
| 2003 | 0.180194 |
| 2002 | 0.321764 |
| 2001 | 0.47326 |
| 2000 | 0.607975 |
| 1999 | 0.728674 |
| 1998 | 0.872117 |
| 1997 | 3.31356 |
| 1996 | 4.01455 |
| 1995 | 1.92656 |
| 1994 | 1.98398 |
| 1993 | 4.97176 |
| 1992 | 5.88215 |
| 1991 | 6.0805 |
| 1990 | 5.33555 |
| 1989 | 5.89478 |
| 1988 | 6.6259 |
| 1987 | 5.85501 |
| 1986 | 5.90701 |
| 1985 | 5.67889 |
| 1984 | 5.32591 |
| 1983 | 5.32415 |
| 1982 | 4.98594 |
| 1981 | 4.98368 |
| 1980 | 5.39805 |
| 1979 | 5.40185 |
| 1978 | 5.35227 |
| 1977 | 6.02516 |
| 1976 | 10.1945 |
| 1975 | 10.156 |
| 1974 | 10.1243 |
| 1973 | 10.0989 |
| 1972 | 10.1568 |
| 1971 | 10.1573 |
| 1970 | 10.1619 |
| 1969 | 10.1599 |
| 1968 | 10.2431 |
| 1967 | 10.3569 |
| 1966 | 12.3998 |
| 1965 | 12.5536 |
| 1964 | 12.4974 |
| 1963 | 12.4511 |
| 1962 | 12.4579 |
| 1961 | 12.508 |
| 1960 | - |