| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 4.33036 |
| 2021 | 4.41682 |
| 2020 | 4.69856 |
| 2019 | 4.92122 |
| 2018 | 4.91117 |
| 2017 | 5.22355 |
| 2016 | 5.0827 |
| 2015 | 4.67662 |
| 2014 | 4.81765 |
| 2013 | 4.59552 |
| 2012 | 3.16463 |
| 2011 | 5.77832 |
| 2010 | 6.82511 |
| 2009 | 6.89869 |
| 2008 | 7.46196 |
| 2007 | -4.50243 |
| 2006 | 5.13948 |
| 2005 | 5.57183 |
| 2004 | 5.81893 |
| 2003 | 5.85119 |
| 2002 | 4.787 |
| 2001 | 5.03349 |
| 2000 | 5.05656 |
| 1999 | 5.10835 |
| 1998 | 5.21165 |
| 1997 | 4.57687 |
| 1996 | 4.70155 |
| 1995 | 4.69008 |
| 1994 | 6.14747 |
| 1993 | 4.10481 |
| 1992 | -3.46291 |
| 1991 | -2.71057 |
| 1990 | 0.656454 |
| 1989 | -0.585227 |
| 1988 | 1.22191 |
| 1987 | 4.57903 |
| 1986 | 5.04959 |
| 1985 | 4.96701 |
| 1984 | 4.57153 |
| 1983 | 4.10619 |
| 1982 | 1.23769 |
| 1981 | 1.68173 |
| 1980 | 9.52154 |
| 1979 | 13.3736 |
| 1978 | 8.08513 |
| 1977 | 3.60546 |
| 1976 | 3.43992 |
| 1975 | 4.30572 |
| 1974 | 4.97882 |
| 1973 | 5.07591 |
| 1972 | 5.06157 |
| 1971 | 5.07958 |
| 1970 | 5.11958 |
| 1969 | 5.12231 |
| 1968 | 5.1494 |
| 1967 | 5.16247 |
| 1966 | 5.18599 |
| 1965 | 5.19727 |
| 1964 | 5.3689 |
| 1963 | 5.53015 |
| 1962 | 5.55239 |
| 1961 | 5.553 |
| 1960 | - |