| 年份 | 布隆迪 |
|---|---|
| 2023 | - |
| 2022 | 4.79642 |
| 2021 | 4.83343 |
| 2020 | 4.85451 |
| 2019 | 4.84172 |
| 2018 | 4.80173 |
| 2017 | 4.732 |
| 2016 | 4.61896 |
| 2015 | 4.46789 |
| 2014 | 4.39301 |
| 2013 | 4.39874 |
| 2012 | 4.39496 |
| 2011 | 4.39905 |
| 2010 | 4.40884 |
| 2009 | 4.43387 |
| 2008 | 4.47396 |
| 2007 | 4.51429 |
| 2006 | 4.55007 |
| 2005 | 4.59163 |
| 2004 | 4.64687 |
| 2003 | 4.71487 |
| 2002 | 4.77678 |
| 2001 | 4.84478 |
| 2000 | 4.9238 |
| 1999 | 5.00424 |
| 1998 | 5.11578 |
| 1997 | 5.22409 |
| 1996 | 5.26469 |
| 1995 | 5.32844 |
| 1994 | 5.69792 |
| 1993 | 5.76478 |
| 1992 | 5.60847 |
| 1991 | 5.7697 |
| 1990 | 5.8853 |
| 1989 | 5.98367 |
| 1988 | 6.06048 |
| 1987 | 6.12963 |
| 1986 | 6.16845 |
| 1985 | 6.15954 |
| 1984 | 6.15317 |
| 1983 | 6.15459 |
| 1982 | 6.16626 |
| 1981 | 6.16614 |
| 1980 | 6.26256 |
| 1979 | 6.37228 |
| 1978 | 6.381 |
| 1977 | 6.41994 |
| 1976 | 6.43438 |
| 1975 | 6.42525 |
| 1974 | 6.43205 |
| 1973 | 6.45668 |
| 1972 | 6.37795 |
| 1971 | 6.28954 |
| 1970 | 6.28315 |
| 1969 | 6.26134 |
| 1968 | 6.23944 |
| 1967 | 6.23322 |
| 1966 | 6.23771 |
| 1965 | 6.24907 |
| 1964 | 6.25411 |
| 1963 | 6.22504 |
| 1962 | 6.15925 |
| 1961 | 6.12813 |
| 1960 | 6.11058 |