| 年份 | 伯利兹 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.249981 |
| 2020 | 0.248151 |
| 2019 | 0.236446 |
| 2018 | 0.235561 |
| 2017 | 0.240197 |
| 2016 | 0.239578 |
| 2015 | 0.244532 |
| 2014 | 0.22138 |
| 2013 | 0.226292 |
| 2012 | 0.231413 |
| 2011 | 0.227591 |
| 2010 | 0.232843 |
| 2009 | 0.232358 |
| 2008 | 0.229004 |
| 2007 | 0.235553 |
| 2006 | 0.242442 |
| 2005 | 0.249666 |
| 2004 | 0.257232 |
| 2003 | 0.265154 |
| 2002 | 0.273451 |
| 2001 | 0.261991 |
| 2000 | 0.266216 |
| 1999 | 0.274993 |
| 1998 | 0.284562 |
| 1997 | 0.294772 |
| 1996 | 0.300229 |
| 1995 | 0.304584 |
| 1994 | 0.302395 |
| 1993 | 0.308996 |
| 1992 | 0.294274 |
| 1991 | 0.289603 |
| 1990 | 0.284793 |
| 1989 | 0.290999 |
| 1988 | 0.286013 |
| 1987 | 0.286583 |
| 1986 | 0.263172 |
| 1985 | 0.2631 |
| 1984 | 0.288002 |
| 1983 | 0.294772 |
| 1982 | 0.301819 |
| 1981 | 0.309215 |
| 1980 | 0.31006 |
| 1979 | 0.303195 |
| 1978 | 0.309502 |
| 1977 | 0.315752 |
| 1976 | 0.314675 |
| 1975 | 0.321098 |
| 1974 | 0.318768 |
| 1973 | 0.323153 |
| 1972 | 0.319862 |
| 1971 | 0.324963 |
| 1970 | 0.322567 |
| 1969 | 0.330103 |
| 1968 | 0.330938 |
| 1967 | 0.341079 |
| 1966 | 0.35165 |
| 1965 | 0.352925 |
| 1964 | 0.363558 |
| 1963 | 0.374259 |
| 1962 | 0.374267 |
| 1961 | 0.383971 |
| 1960 | - |