| 年份 | 索马里 |
|---|---|
| 2023 | - |
| 2022 | 1.84993 |
| 2021 | 1.8686 |
| 2020 | 1.888 |
| 2019 | 1.90335 |
| 2018 | 1.91605 |
| 2017 | 1.93015 |
| 2016 | 1.94574 |
| 2015 | 1.96273 |
| 2014 | 1.98059 |
| 2013 | 1.99933 |
| 2012 | 2.01915 |
| 2011 | 2.04093 |
| 2010 | 2.06429 |
| 2009 | 2.07112 |
| 2008 | 2.05012 |
| 2007 | 2.01661 |
| 2006 | 1.97313 |
| 2005 | 1.91568 |
| 2004 | 1.86801 |
| 2003 | 1.8455 |
| 2002 | 1.83072 |
| 2001 | 1.8206 |
| 2000 | 1.82208 |
| 1999 | 1.83655 |
| 1998 | 1.86554 |
| 1997 | 1.90485 |
| 1996 | 1.94501 |
| 1995 | 1.97855 |
| 1994 | 2.0044 |
| 1993 | 2.01862 |
| 1992 | 2.02407 |
| 1991 | 2.03388 |
| 1990 | 2.05386 |
| 1989 | 2.08152 |
| 1988 | 2.11692 |
| 1987 | 2.15438 |
| 1986 | 2.18812 |
| 1985 | 2.21914 |
| 1984 | 2.24776 |
| 1983 | 2.27371 |
| 1982 | 2.29711 |
| 1981 | 2.32142 |
| 1980 | 2.34574 |
| 1979 | 2.3682 |
| 1978 | 2.39055 |
| 1977 | 2.41386 |
| 1976 | 2.43628 |
| 1975 | 2.45756 |
| 1974 | 2.47802 |
| 1973 | 2.49815 |
| 1972 | 2.51716 |
| 1971 | 2.53372 |
| 1970 | 2.54695 |
| 1969 | 2.55668 |
| 1968 | 2.56261 |
| 1967 | 2.56587 |
| 1966 | 2.56947 |
| 1965 | 2.57537 |
| 1964 | 2.58316 |
| 1963 | 2.59296 |
| 1962 | 2.60467 |
| 1961 | 2.61576 |
| 1960 | 2.62473 |