| 年份 | 布隆迪 |
|---|---|
| 2023 | - |
| 2022 | 1.44459 |
| 2021 | 1.46581 |
| 2020 | 1.49145 |
| 2019 | 1.51537 |
| 2018 | 1.53916 |
| 2017 | 1.56147 |
| 2016 | 1.58028 |
| 2015 | 1.59637 |
| 2014 | 1.58258 |
| 2013 | 1.54882 |
| 2012 | 1.52121 |
| 2011 | 1.48925 |
| 2010 | 1.45307 |
| 2009 | 1.46224 |
| 2008 | 1.50569 |
| 2007 | 1.53215 |
| 2006 | 1.55441 |
| 2005 | 1.57146 |
| 2004 | 1.58751 |
| 2003 | 1.6037 |
| 2002 | 1.61638 |
| 2001 | 1.62614 |
| 2000 | 1.63217 |
| 1999 | 1.63348 |
| 1998 | 1.63639 |
| 1997 | 1.638 |
| 1996 | 1.631 |
| 1995 | 1.6295 |
| 1994 | 1.67175 |
| 1993 | 1.68277 |
| 1992 | 1.67021 |
| 1991 | 1.69939 |
| 1990 | 1.72741 |
| 1989 | 1.75785 |
| 1988 | 1.78961 |
| 1987 | 1.82326 |
| 1986 | 1.85446 |
| 1985 | 1.88048 |
| 1984 | 1.90766 |
| 1983 | 1.93639 |
| 1982 | 1.96636 |
| 1981 | 1.9925 |
| 1980 | 2.03351 |
| 1979 | 2.07472 |
| 1978 | 2.09497 |
| 1977 | 2.11776 |
| 1976 | 2.13558 |
| 1975 | 2.14935 |
| 1974 | 2.16576 |
| 1973 | 2.18533 |
| 1972 | 2.18713 |
| 1971 | 2.18517 |
| 1970 | 2.19552 |
| 1969 | 2.2004 |
| 1968 | 2.20234 |
| 1967 | 2.20466 |
| 1966 | 2.20824 |
| 1965 | 2.21234 |
| 1964 | 2.22128 |
| 1963 | 2.23084 |
| 1962 | 2.23102 |
| 1961 | 2.2295 |
| 1960 | 2.21665 |