| 年份 | 厄立特里亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 17.3 |
| 2020 | 17.7 |
| 2019 | 18.1 |
| 2018 | 18.5 |
| 2017 | 18.9 |
| 2016 | 19.3 |
| 2015 | 19.7 |
| 2014 | 20.2 |
| 2013 | 20.6 |
| 2012 | 21 |
| 2011 | 21.5 |
| 2010 | 22 |
| 2009 | 22.6 |
| 2008 | 23.2 |
| 2007 | 23.7 |
| 2006 | 24.3 |
| 2005 | 24.7 |
| 2004 | 25.2 |
| 2003 | 25.7 |
| 2002 | 26.1 |
| 2001 | 26.6 |
| 2000 | 27.1 |
| 1999 | 27.6 |
| 1998 | 28.2 |
| 1997 | 28.9 |
| 1996 | 29.6 |
| 1995 | 30.5 |
| 1994 | 31.3 |
| 1993 | 32.2 |
| 1992 | 33 |
| 1991 | 33.9 |
| 1990 | 34.9 |
| 1989 | 36 |
| 1988 | 37 |
| 1987 | 37.9 |
| 1986 | 38.7 |
| 1985 | 39.3 |
| 1984 | 39.9 |
| 1983 | 40.5 |
| 1982 | 41.2 |
| 1981 | 42 |
| 1980 | 42.9 |
| 1979 | 43.9 |
| 1978 | 44.8 |
| 1977 | 45.5 |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |