| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 2.96124 |
| 2021 | 2.95515 |
| 2020 | 2.95462 |
| 2019 | 2.95754 |
| 2018 | 2.96134 |
| 2017 | 2.96395 |
| 2016 | 2.96736 |
| 2015 | 2.97455 |
| 2014 | 2.98643 |
| 2013 | 3.00228 |
| 2012 | 3.02176 |
| 2011 | 3.04376 |
| 2010 | 3.06674 |
| 2009 | 3.09181 |
| 2008 | 3.11925 |
| 2007 | 3.14813 |
| 2006 | 3.17854 |
| 2005 | 3.21036 |
| 2004 | 3.24369 |
| 2003 | 3.27884 |
| 2002 | 3.31604 |
| 2001 | 3.3558 |
| 2000 | 3.39818 |
| 1999 | 3.41406 |
| 1998 | 3.38454 |
| 1997 | 3.33418 |
| 1996 | 3.26746 |
| 1995 | 3.17729 |
| 1994 | 3.10139 |
| 1993 | 3.06833 |
| 1992 | 3.03463 |
| 1991 | 2.99511 |
| 1990 | 2.99133 |
| 1989 | 3.02459 |
| 1988 | 3.08361 |
| 1987 | 3.15119 |
| 1986 | 3.21203 |
| 1985 | 3.26161 |
| 1984 | 3.297 |
| 1983 | 3.3139 |
| 1982 | 3.31719 |
| 1981 | 3.32588 |
| 1980 | 3.34793 |
| 1979 | 3.37646 |
| 1978 | 3.41117 |
| 1977 | 3.45489 |
| 1976 | 3.49734 |
| 1975 | 3.53352 |
| 1974 | 3.56589 |
| 1973 | 3.59563 |
| 1972 | 3.62256 |
| 1971 | 3.64973 |
| 1970 | 3.67949 |
| 1969 | 3.71063 |
| 1968 | 3.7429 |
| 1967 | 3.7766 |
| 1966 | 3.81021 |
| 1965 | 3.84286 |
| 1964 | 3.87522 |
| 1963 | 3.90786 |
| 1962 | 3.93944 |
| 1961 | 3.96773 |
| 1960 | 3.99167 |