| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 2.05871 |
| 2021 | 2.07538 |
| 2020 | 2.09228 |
| 2019 | 2.10671 |
| 2018 | 2.11994 |
| 2017 | 2.13421 |
| 2016 | 2.14971 |
| 2015 | 2.16661 |
| 2014 | 2.18448 |
| 2013 | 2.20328 |
| 2012 | 2.22326 |
| 2011 | 2.24517 |
| 2010 | 2.26842 |
| 2009 | 2.2736 |
| 2008 | 2.25099 |
| 2007 | 2.21566 |
| 2006 | 2.16882 |
| 2005 | 2.10888 |
| 2004 | 2.06157 |
| 2003 | 2.0405 |
| 2002 | 2.02896 |
| 2001 | 2.02599 |
| 2000 | 2.0356 |
| 1999 | 2.05837 |
| 1998 | 2.09671 |
| 1997 | 2.14477 |
| 1996 | 2.18849 |
| 1995 | 2.21772 |
| 1994 | 2.23103 |
| 1993 | 2.22351 |
| 1992 | 2.19337 |
| 1991 | 2.16322 |
| 1990 | 2.15647 |
| 1989 | 2.17034 |
| 1988 | 2.20004 |
| 1987 | 2.24015 |
| 1986 | 2.27988 |
| 1985 | 2.31599 |
| 1984 | 2.35005 |
| 1983 | 2.38214 |
| 1982 | 2.41162 |
| 1981 | 2.44167 |
| 1980 | 2.47054 |
| 1979 | 2.49604 |
| 1978 | 2.51954 |
| 1977 | 2.54231 |
| 1976 | 2.56376 |
| 1975 | 2.58433 |
| 1974 | 2.60403 |
| 1973 | 2.62344 |
| 1972 | 2.64263 |
| 1971 | 2.6608 |
| 1970 | 2.67795 |
| 1969 | 2.69387 |
| 1968 | 2.70861 |
| 1967 | 2.72256 |
| 1966 | 2.73605 |
| 1965 | 2.7493 |
| 1964 | 2.7624 |
| 1963 | 2.77507 |
| 1962 | 2.78742 |
| 1961 | 2.79952 |
| 1960 | 2.81137 |