| 年份 | 布隆迪 |
|---|---|
| 2023 | - |
| 2022 | 2.38821 |
| 2021 | 2.32378 |
| 2020 | 2.2708 |
| 2019 | 2.22413 |
| 2018 | 2.18518 |
| 2017 | 2.16483 |
| 2016 | 2.15858 |
| 2015 | 2.16335 |
| 2014 | 2.18377 |
| 2013 | 2.21695 |
| 2012 | 2.25436 |
| 2011 | 2.30076 |
| 2010 | 2.35574 |
| 2009 | 2.41335 |
| 2008 | 2.4733 |
| 2007 | 2.53226 |
| 2006 | 2.59033 |
| 2005 | 2.64966 |
| 2004 | 2.64932 |
| 2003 | 2.59737 |
| 2002 | 2.54944 |
| 2001 | 2.49055 |
| 2000 | 2.42212 |
| 1999 | 2.41845 |
| 1998 | 2.46527 |
| 1997 | 2.48974 |
| 1996 | 2.50701 |
| 1995 | 2.51771 |
| 1994 | 2.53811 |
| 1993 | 2.55024 |
| 1992 | 2.55496 |
| 1991 | 2.57038 |
| 1990 | 2.58211 |
| 1989 | 2.59184 |
| 1988 | 2.60167 |
| 1987 | 2.61345 |
| 1986 | 2.62732 |
| 1985 | 2.64372 |
| 1984 | 2.66452 |
| 1983 | 2.68888 |
| 1982 | 2.71727 |
| 1981 | 2.74943 |
| 1980 | 2.79421 |
| 1979 | 2.84448 |
| 1978 | 2.88832 |
| 1977 | 2.936 |
| 1976 | 2.98227 |
| 1975 | 3.02572 |
| 1974 | 3.06959 |
| 1973 | 3.11542 |
| 1972 | 3.1521 |
| 1971 | 3.18266 |
| 1970 | 3.21582 |
| 1969 | 3.24322 |
| 1968 | 3.26661 |
| 1967 | 3.28863 |
| 1966 | 3.31092 |
| 1965 | 3.33273 |
| 1964 | 3.35822 |
| 1963 | 3.38368 |
| 1962 | 3.40042 |
| 1961 | 3.41903 |
| 1960 | 3.43396 |