| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 0.446874 |
| 2021 | 0.449926 |
| 2020 | 0.454499 |
| 2019 | 0.457614 |
| 2018 | 0.461381 |
| 2017 | 0.467801 |
| 2016 | 0.474238 |
| 2015 | 0.478323 |
| 2014 | 0.479207 |
| 2013 | 0.47522 |
| 2012 | 0.46678 |
| 2011 | 0.459267 |
| 2010 | 0.456022 |
| 2009 | 0.455574 |
| 2008 | 0.457958 |
| 2007 | 0.463733 |
| 2006 | 0.47017 |
| 2005 | 0.475699 |
| 2004 | 0.480874 |
| 2003 | 0.48559 |
| 2002 | 0.489532 |
| 2001 | 0.493141 |
| 2000 | 0.496748 |
| 1999 | 0.500234 |
| 1998 | 0.50323 |
| 1997 | 0.505851 |
| 1996 | 0.508057 |
| 1995 | 0.509615 |
| 1994 | 0.511237 |
| 1993 | 0.513059 |
| 1992 | 0.528529 |
| 1991 | 0.559852 |
| 1990 | 0.578191 |
| 1989 | 0.58324 |
| 1988 | 0.590068 |
| 1987 | 0.596328 |
| 1986 | 0.600268 |
| 1985 | 0.604112 |
| 1984 | 0.607646 |
| 1983 | 0.610852 |
| 1982 | 0.613733 |
| 1981 | 0.616178 |
| 1980 | 0.618136 |
| 1979 | 0.619452 |
| 1978 | 0.620348 |
| 1977 | 0.621125 |
| 1976 | 0.622369 |
| 1975 | 0.624437 |
| 1974 | 0.62669 |
| 1973 | 0.627522 |
| 1972 | 0.626578 |
| 1971 | 0.624834 |
| 1970 | 0.622352 |
| 1969 | 0.619094 |
| 1968 | 0.614773 |
| 1967 | 0.609568 |
| 1966 | 0.603878 |
| 1965 | 0.59812 |
| 1964 | 0.592141 |
| 1963 | 0.585778 |
| 1962 | 0.579043 |
| 1961 | 0.571393 |
| 1960 | 0.562205 |