| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 2.34912 |
| 2021 | 2.35521 |
| 2020 | 2.36319 |
| 2019 | 2.37119 |
| 2018 | 2.38031 |
| 2017 | 2.39287 |
| 2016 | 2.40829 |
| 2015 | 2.42582 |
| 2014 | 2.44484 |
| 2013 | 2.46531 |
| 2012 | 2.48704 |
| 2011 | 2.51001 |
| 2010 | 2.53358 |
| 2009 | 2.55824 |
| 2008 | 2.58437 |
| 2007 | 2.61178 |
| 2006 | 2.64127 |
| 2005 | 2.67243 |
| 2004 | 2.68236 |
| 2003 | 2.65713 |
| 2002 | 2.61558 |
| 2001 | 2.5617 |
| 2000 | 2.48964 |
| 1999 | 2.42953 |
| 1998 | 2.402 |
| 1997 | 2.38448 |
| 1996 | 2.37269 |
| 1995 | 2.37568 |
| 1994 | 2.39574 |
| 1993 | 2.434 |
| 1992 | 2.48301 |
| 1991 | 2.52832 |
| 1990 | 2.56951 |
| 1989 | 2.60574 |
| 1988 | 2.62763 |
| 1987 | 2.63637 |
| 1986 | 2.64608 |
| 1985 | 2.66722 |
| 1984 | 2.69612 |
| 1983 | 2.73099 |
| 1982 | 2.7716 |
| 1981 | 2.81323 |
| 1980 | 2.84931 |
| 1979 | 2.87964 |
| 1978 | 2.90677 |
| 1977 | 2.93109 |
| 1976 | 2.95422 |
| 1975 | 2.97853 |
| 1974 | 3.00348 |
| 1973 | 3.02955 |
| 1972 | 3.05697 |
| 1971 | 3.084 |
| 1970 | 3.10988 |
| 1969 | 3.13527 |
| 1968 | 3.16067 |
| 1967 | 3.18481 |
| 1966 | 3.20618 |
| 1965 | 3.22375 |
| 1964 | 3.2373 |
| 1963 | 3.2464 |
| 1962 | 3.25243 |
| 1961 | 3.25916 |
| 1960 | 3.26909 |