| 年份 | 布隆迪 |
|---|---|
| 2023 | - |
| 2022 | 6.01693 |
| 2021 | 6.04734 |
| 2020 | 6.02128 |
| 2019 | 5.92324 |
| 2018 | 5.77016 |
| 2017 | 5.58583 |
| 2016 | 5.39654 |
| 2015 | 5.25115 |
| 2014 | 5.11218 |
| 2013 | 4.92343 |
| 2012 | 4.76677 |
| 2011 | 4.65455 |
| 2010 | 4.55724 |
| 2009 | 4.42809 |
| 2008 | 4.30528 |
| 2007 | 4.21652 |
| 2006 | 4.12654 |
| 2005 | 4.05178 |
| 2004 | 3.97193 |
| 2003 | 3.89278 |
| 2002 | 3.8644 |
| 2001 | 3.86429 |
| 2000 | 3.88606 |
| 1999 | 3.94901 |
| 1998 | 4.00603 |
| 1997 | 4.08656 |
| 1996 | 4.27934 |
| 1995 | 4.47178 |
| 1994 | 4.34603 |
| 1993 | 4.49302 |
| 1992 | 4.82575 |
| 1991 | 4.87353 |
| 1990 | 4.95478 |
| 1989 | 4.92789 |
| 1988 | 4.81387 |
| 1987 | 4.70101 |
| 1986 | 4.57359 |
| 1985 | 4.45535 |
| 1984 | 4.44117 |
| 1983 | 4.50933 |
| 1982 | 4.53628 |
| 1981 | 4.57243 |
| 1980 | 4.51958 |
| 1979 | 4.45413 |
| 1978 | 4.47341 |
| 1977 | 4.46817 |
| 1976 | 4.47464 |
| 1975 | 4.48994 |
| 1974 | 4.48444 |
| 1973 | 4.4655 |
| 1972 | 4.5567 |
| 1971 | 4.64812 |
| 1970 | 4.64679 |
| 1969 | 4.66341 |
| 1968 | 4.6835 |
| 1967 | 4.69804 |
| 1966 | 4.71514 |
| 1965 | 4.74873 |
| 1964 | 4.77453 |
| 1963 | 4.80548 |
| 1962 | 4.87638 |
| 1961 | 4.92691 |
| 1960 | 4.97544 |