| 年份 | 斯威士兰 |
|---|---|
| 2023 | - |
| 2022 | 0.785236 |
| 2021 | 0.979052 |
| 2020 | 0.939644 |
| 2019 | 0.788402 |
| 2018 | 0.781899 |
| 2017 | 0.773006 |
| 2016 | 0.754508 |
| 2015 | 0.714314 |
| 2014 | 0.672496 |
| 2013 | 0.616659 |
| 2012 | 0.547905 |
| 2011 | 0.494358 |
| 2010 | 0.45872 |
| 2009 | 0.459183 |
| 2008 | 0.539314 |
| 2007 | 0.580367 |
| 2006 | 0.54419 |
| 2005 | 0.57278 |
| 2004 | 0.655855 |
| 2003 | 0.757301 |
| 2002 | 0.899822 |
| 2001 | 1.05219 |
| 2000 | 1.18369 |
| 1999 | 1.30586 |
| 1998 | 1.44539 |
| 1997 | 1.74589 |
| 1996 | 2.07712 |
| 1995 | -0.017197 |
| 1994 | 0.0299918 |
| 1993 | 3.01159 |
| 1992 | 3.90743 |
| 1991 | 4.09537 |
| 1990 | 3.34074 |
| 1989 | 3.89067 |
| 1988 | 4.60643 |
| 1987 | 3.83156 |
| 1986 | 3.8747 |
| 1985 | 3.63843 |
| 1984 | 3.27128 |
| 1983 | 3.26648 |
| 1982 | 2.91533 |
| 1981 | 2.90544 |
| 1980 | 3.30738 |
| 1979 | 3.31015 |
| 1978 | 3.24871 |
| 1977 | 3.16026 |
| 1976 | 3.07698 |
| 1975 | 2.97007 |
| 1974 | 2.86211 |
| 1973 | 2.77518 |
| 1972 | 2.73188 |
| 1971 | 2.68412 |
| 1970 | 2.63081 |
| 1969 | 2.58145 |
| 1968 | 2.58686 |
| 1967 | 2.66609 |
| 1966 | 2.6791 |
| 1965 | 2.5524 |
| 1964 | 2.40742 |
| 1963 | 2.3152 |
| 1962 | 2.26859 |
| 1961 | 2.26531 |
| 1960 | - |