| 年份 | 布隆迪  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.343299 | 
| 2021 | 0.342689 | 
| 2020 | 0.342148 | 
| 2019 | 0.338229 | 
| 2018 | 0.329965 | 
| 2017 | 0.322529 | 
| 2016 | 0.318854 | 
| 2015 | 0.320349 | 
| 2014 | 0.322768 | 
| 2013 | 0.322873 | 
| 2012 | 0.323671 | 
| 2011 | 0.326395 | 
| 2010 | 0.331054 | 
| 2009 | 0.331063 | 
| 2008 | 0.327345 | 
| 2007 | 0.326499 | 
| 2006 | 0.32705 | 
| 2005 | 0.327235 | 
| 2004 | 0.325804 | 
| 2003 | 0.322628 | 
| 2002 | 0.320162 | 
| 2001 | 0.318049 | 
| 2000 | 0.31641 | 
| 1999 | 0.316027 | 
| 1998 | 0.314194 | 
| 1997 | 0.313907 | 
| 1996 | 0.325079 | 
| 1995 | 0.344204 | 
| 1994 | 0.33734 | 
| 1993 | 0.337489 | 
| 1992 | 0.358149 | 
| 1991 | 0.367119 | 
| 1990 | 0.37648 | 
| 1989 | 0.384634 | 
| 1988 | 0.391592 | 
| 1987 | 0.395294 | 
| 1986 | 0.395939 | 
| 1985 | 0.396415 | 
| 1984 | 0.396161 | 
| 1983 | 0.396038 | 
| 1982 | 0.395727 | 
| 1981 | 0.39716 | 
| 1980 | 0.392009 | 
| 1979 | 0.383 | 
| 1978 | 0.378713 | 
| 1977 | 0.372081 | 
| 1976 | 0.366301 | 
| 1975 | 0.363442 | 
| 1974 | 0.361177 | 
| 1973 | 0.359381 | 
| 1972 | 0.367482 | 
| 1971 | 0.377147 | 
| 1970 | 0.380415 | 
| 1969 | 0.384073 | 
| 1968 | 0.387184 | 
| 1967 | 0.389224 | 
| 1966 | 0.390213 | 
| 1965 | 0.39191 | 
| 1964 | 0.390811 | 
| 1963 | 0.385774 | 
| 1962 | 0.382268 | 
| 1961 | 0.376514 | 
| 1960 | 0.369024 |