| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 3.91813 |
| 2021 | 3.88482 |
| 2020 | 3.8511 |
| 2019 | 3.81734 |
| 2018 | 3.7866 |
| 2017 | 3.76957 |
| 2016 | 3.76868 |
| 2015 | 3.7791 |
| 2014 | 3.79995 |
| 2013 | 3.82557 |
| 2012 | 3.84988 |
| 2011 | 3.87207 |
| 2010 | 3.89346 |
| 2009 | 3.91723 |
| 2008 | 3.94339 |
| 2007 | 3.9709 |
| 2006 | 3.9998 |
| 2005 | 4.03013 |
| 2004 | 4.0625 |
| 2003 | 4.09696 |
| 2002 | 4.13315 |
| 2001 | 4.17076 |
| 2000 | 4.20979 |
| 1999 | 4.25075 |
| 1998 | 4.29377 |
| 1997 | 4.33871 |
| 1996 | 4.38698 |
| 1995 | 4.43887 |
| 1994 | 4.45554 |
| 1993 | 4.41924 |
| 1992 | 4.32459 |
| 1991 | 4.16714 |
| 1990 | 4.02156 |
| 1989 | 3.935 |
| 1988 | 3.89565 |
| 1987 | 3.87505 |
| 1986 | 3.87229 |
| 1985 | 3.89312 |
| 1984 | 3.9383 |
| 1983 | 4.01029 |
| 1982 | 4.09519 |
| 1981 | 4.16814 |
| 1980 | 4.20871 |
| 1979 | 4.21806 |
| 1978 | 4.19218 |
| 1977 | 4.13228 |
| 1976 | 4.07595 |
| 1975 | 4.05004 |
| 1974 | 4.05092 |
| 1973 | 4.07871 |
| 1972 | 4.13273 |
| 1971 | 4.19021 |
| 1970 | 4.24049 |
| 1969 | 4.28743 |
| 1968 | 4.33173 |
| 1967 | 4.37165 |
| 1966 | 4.41102 |
| 1965 | 4.45226 |
| 1964 | 4.49308 |
| 1963 | 4.53148 |
| 1962 | 4.56864 |
| 1961 | 4.60563 |
| 1960 | 4.64307 |