| 年份 | 吉布提  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.660043 | 
| 2021 | 0.651556 | 
| 2020 | 0.642171 | 
| 2019 | 0.627258 | 
| 2018 | 0.608905 | 
| 2017 | 0.590719 | 
| 2016 | 0.57384 | 
| 2015 | 0.55825 | 
| 2014 | 0.54253 | 
| 2013 | 0.527626 | 
| 2012 | 0.513561 | 
| 2011 | 0.500046 | 
| 2010 | 0.48746 | 
| 2009 | 0.475718 | 
| 2008 | 0.465008 | 
| 2007 | 0.455199 | 
| 2006 | 0.447013 | 
| 2005 | 0.439106 | 
| 2004 | 0.42983 | 
| 2003 | 0.420828 | 
| 2002 | 0.415452 | 
| 2001 | 0.413479 | 
| 2000 | 0.411555 | 
| 1999 | 0.410035 | 
| 1998 | 0.410324 | 
| 1997 | 0.412275 | 
| 1996 | 0.411697 | 
| 1995 | 0.406601 | 
| 1994 | 0.401121 | 
| 1993 | 0.395761 | 
| 1992 | 0.389041 | 
| 1991 | 0.383187 | 
| 1990 | 0.377181 | 
| 1989 | 0.370629 | 
| 1988 | 0.365344 | 
| 1987 | 0.360574 | 
| 1986 | 0.355275 | 
| 1985 | 0.349857 | 
| 1984 | 0.344183 | 
| 1983 | 0.33901 | 
| 1982 | 0.336178 | 
| 1981 | 0.331979 | 
| 1980 | 0.32599 | 
| 1979 | 0.321014 | 
| 1978 | 0.316041 | 
| 1977 | 0.309681 | 
| 1976 | 0.304169 | 
| 1975 | 0.301093 | 
| 1974 | 0.295491 | 
| 1973 | 0.289295 | 
| 1972 | 0.283476 | 
| 1971 | 0.276715 | 
| 1970 | 0.271547 | 
| 1969 | 0.263966 | 
| 1968 | 0.25512 | 
| 1967 | 0.247563 | 
| 1966 | 0.240438 | 
| 1965 | 0.23209 | 
| 1964 | 0.22216 | 
| 1963 | 0.214919 | 
| 1962 | 0.211614 | 
| 1961 | 0.208567 | 
| 1960 | 0.203992 |