| 年份 | 斯威士兰 |
|---|---|
| 2023 | - |
| 2022 | 0.354179 |
| 2021 | 0.36649 |
| 2020 | 0.371128 |
| 2019 | 0.363659 |
| 2018 | 0.349876 |
| 2017 | 0.336586 |
| 2016 | 0.324443 |
| 2015 | 0.314266 |
| 2014 | 0.305591 |
| 2013 | 0.298297 |
| 2012 | 0.292676 |
| 2011 | 0.288826 |
| 2010 | 0.286656 |
| 2009 | 0.285275 |
| 2008 | 0.283588 |
| 2007 | 0.280868 |
| 2006 | 0.278189 |
| 2005 | 0.276655 |
| 2004 | 0.275591 |
| 2003 | 0.274512 |
| 2002 | 0.274125 |
| 2001 | 0.274185 |
| 2000 | 0.273678 |
| 1999 | 0.272781 |
| 1998 | 0.271818 |
| 1997 | 0.269906 |
| 1996 | 0.268406 |
| 1995 | 0.267786 |
| 1994 | 0.261211 |
| 1993 | 0.254897 |
| 1992 | 0.25559 |
| 1991 | 0.258375 |
| 1990 | 0.261503 |
| 1989 | 0.261893 |
| 1988 | 0.263117 |
| 1987 | 0.266263 |
| 1986 | 0.266947 |
| 1985 | 0.267023 |
| 1984 | 0.266793 |
| 1983 | 0.265692 |
| 1982 | 0.265344 |
| 1981 | 0.263925 |
| 1980 | 0.262152 |
| 1979 | 0.261789 |
| 1978 | 0.260738 |
| 1977 | 0.258916 |
| 1976 | 0.255983 |
| 1975 | 0.253563 |
| 1974 | 0.251468 |
| 1973 | 0.248706 |
| 1972 | 0.245561 |
| 1971 | 0.24193 |
| 1970 | 0.238049 |
| 1969 | 0.234173 |
| 1968 | 0.230848 |
| 1967 | 0.227084 |
| 1966 | 0.222646 |
| 1965 | 0.218002 |
| 1964 | 0.211795 |
| 1963 | 0.204184 |
| 1962 | 0.196715 |
| 1961 | 0.189 |
| 1960 | 0.180861 |