| 年份 | 斯威士兰 |
|---|---|
| 2023 | - |
| 2022 | 0.476445 |
| 2021 | 10.6833 |
| 2020 | -1.55964 |
| 2019 | 2.69217 |
| 2018 | 2.3801 |
| 2017 | 2.02658 |
| 2016 | 1.06261 |
| 2015 | 2.22748 |
| 2014 | 0.923231 |
| 2013 | 3.86121 |
| 2012 | 5.39663 |
| 2011 | 2.24723 |
| 2010 | 3.79376 |
| 2009 | 1.56505 |
| 2008 | 0.821664 |
| 2007 | 4.43538 |
| 2006 | 5.99217 |
| 2005 | 5.99878 |
| 2004 | 3.62391 |
| 2003 | 3.88021 |
| 2002 | 4.3801 |
| 2001 | 1.05476 |
| 2000 | 1.76017 |
| 1999 | 2.95088 |
| 1998 | 2.60404 |
| 1997 | 3.10281 |
| 1996 | 3.84205 |
| 1995 | 4.82565 |
| 1994 | 2.40069 |
| 1993 | 3.10611 |
| 1992 | 3.22621 |
| 1991 | 1.76038 |
| 1990 | 21.018 |
| 1989 | 12.9111 |
| 1988 | 6.56982 |
| 1987 | 14.6066 |
| 1986 | 12.2645 |
| 1985 | 3.79242 |
| 1984 | 6.16176 |
| 1983 | 1.20235 |
| 1982 | 1.17257 |
| 1981 | 14.6414 |
| 1980 | 12.4491 |
| 1979 | 3.10695 |
| 1978 | 1.32713 |
| 1977 | 1.00959 |
| 1976 | -2.11944 |
| 1975 | 13.9084 |
| 1974 | 5.74349 |
| 1973 | 9.01867 |
| 1972 | 5.42429 |
| 1971 | 13.7436 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |