| 年份 | 吉布提 |
|---|---|
| 2023 | - |
| 2022 | 0.452752 |
| 2021 | 0.452914 |
| 2020 | 0.453026 |
| 2019 | 0.447129 |
| 2018 | 0.434982 |
| 2017 | 0.422515 |
| 2016 | 0.411137 |
| 2015 | 0.400514 |
| 2014 | 0.390296 |
| 2013 | 0.379606 |
| 2012 | 0.368816 |
| 2011 | 0.358603 |
| 2010 | 0.348727 |
| 2009 | 0.339335 |
| 2008 | 0.330639 |
| 2007 | 0.322644 |
| 2006 | 0.31632 |
| 2005 | 0.310493 |
| 2004 | 0.303599 |
| 2003 | 0.296443 |
| 2002 | 0.291412 |
| 2001 | 0.289199 |
| 2000 | 0.287585 |
| 1999 | 0.285536 |
| 1998 | 0.283941 |
| 1997 | 0.284272 |
| 1996 | 0.283315 |
| 1995 | 0.27991 |
| 1994 | 0.275783 |
| 1993 | 0.27164 |
| 1992 | 0.267336 |
| 1991 | 0.262259 |
| 1990 | 0.258377 |
| 1989 | 0.254724 |
| 1988 | 0.249984 |
| 1987 | 0.245722 |
| 1986 | 0.241084 |
| 1985 | 0.236455 |
| 1984 | 0.231894 |
| 1983 | 0.228155 |
| 1982 | 0.225235 |
| 1981 | 0.221084 |
| 1980 | 0.21635 |
| 1979 | 0.212916 |
| 1978 | 0.210241 |
| 1977 | 0.206588 |
| 1976 | 0.202062 |
| 1975 | 0.19797 |
| 1974 | 0.194154 |
| 1973 | 0.190208 |
| 1972 | 0.185805 |
| 1971 | 0.181409 |
| 1970 | 0.174914 |
| 1969 | 0.167139 |
| 1968 | 0.161422 |
| 1967 | 0.15424 |
| 1966 | 0.146865 |
| 1965 | 0.142098 |
| 1964 | 0.139337 |
| 1963 | 0.138576 |
| 1962 | 0.135567 |
| 1961 | 0.133481 |
| 1960 | 0.135116 |