| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 18.878 |
| 2021 | 19.0038 |
| 2020 | 19.1369 |
| 2019 | 19.262 |
| 2018 | 19.3752 |
| 2017 | 19.4737 |
| 2016 | 19.538 |
| 2015 | 19.5611 |
| 2014 | 19.5707 |
| 2013 | 19.5884 |
| 2012 | 19.6148 |
| 2011 | 19.6687 |
| 2010 | 19.7536 |
| 2009 | 19.8323 |
| 2008 | 19.9022 |
| 2007 | 19.9821 |
| 2006 | 20.0635 |
| 2005 | 20.1389 |
| 2004 | 20.2118 |
| 2003 | 20.2788 |
| 2002 | 20.3372 |
| 2001 | 20.3808 |
| 2000 | 20.4118 |
| 1999 | 20.437 |
| 1998 | 20.4562 |
| 1997 | 20.3136 |
| 1996 | 19.8343 |
| 1995 | 19.2186 |
| 1994 | 18.7412 |
| 1993 | 18.4303 |
| 1992 | 18.6708 |
| 1991 | 19.5127 |
| 1990 | 19.9042 |
| 1989 | 19.7938 |
| 1988 | 19.6613 |
| 1987 | 19.5485 |
| 1986 | 19.4522 |
| 1985 | 19.3411 |
| 1984 | 19.2158 |
| 1983 | 19.0807 |
| 1982 | 18.9198 |
| 1981 | 18.7213 |
| 1980 | 18.5183 |
| 1979 | 18.3272 |
| 1978 | 18.1466 |
| 1977 | 18.0105 |
| 1976 | 17.9616 |
| 1975 | 17.9728 |
| 1974 | 18.0105 |
| 1973 | 18.0286 |
| 1972 | 18.0174 |
| 1971 | 18.0155 |
| 1970 | 18.0235 |
| 1969 | 18.0396 |
| 1968 | 18.0611 |
| 1967 | 18.0889 |
| 1966 | 18.1222 |
| 1965 | 18.1606 |
| 1964 | 18.2064 |
| 1963 | 18.2599 |
| 1962 | 18.3191 |
| 1961 | 18.3855 |
| 1960 | 18.4589 |