| 年份 | 布隆迪 |
|---|---|
| 2023 | - |
| 2022 | 0.328117 |
| 2021 | 0.330339 |
| 2020 | 0.331677 |
| 2019 | 0.330549 |
| 2018 | 0.327293 |
| 2017 | 0.32467 |
| 2016 | 0.323307 |
| 2015 | 0.3232 |
| 2014 | 0.3226 |
| 2013 | 0.32083 |
| 2012 | 0.319289 |
| 2011 | 0.318597 |
| 2010 | 0.318919 |
| 2009 | 0.318501 |
| 2008 | 0.317372 |
| 2007 | 0.316991 |
| 2006 | 0.317219 |
| 2005 | 0.31788 |
| 2004 | 0.318601 |
| 2003 | 0.31924 |
| 2002 | 0.320288 |
| 2001 | 0.321498 |
| 2000 | 0.322961 |
| 1999 | 0.324819 |
| 1998 | 0.326142 |
| 1997 | 0.32875 |
| 1996 | 0.336085 |
| 1995 | 0.346315 |
| 1994 | 0.35075 |
| 1993 | 0.361384 |
| 1992 | 0.377969 |
| 1991 | 0.390948 |
| 1990 | 0.404091 |
| 1989 | 0.416255 |
| 1988 | 0.427044 |
| 1987 | 0.434953 |
| 1986 | 0.439404 |
| 1985 | 0.44228 |
| 1984 | 0.444338 |
| 1983 | 0.44609 |
| 1982 | 0.44778 |
| 1981 | 0.449608 |
| 1980 | 0.451613 |
| 1979 | 0.452998 |
| 1978 | 0.453963 |
| 1977 | 0.4545 |
| 1976 | 0.453174 |
| 1975 | 0.449755 |
| 1974 | 0.444381 |
| 1973 | 0.437027 |
| 1972 | 0.432185 |
| 1971 | 0.428317 |
| 1970 | 0.423323 |
| 1969 | 0.421486 |
| 1968 | 0.423397 |
| 1967 | 0.428924 |
| 1966 | 0.435218 |
| 1965 | 0.441448 |
| 1964 | 0.447085 |
| 1963 | 0.450771 |
| 1962 | 0.453056 |
| 1961 | 0.455198 |
| 1960 | 0.45771 |