| 年份 | 索马里  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 3.82291 | 
| 2021 | 3.79179 | 
| 2020 | 3.7594 | 
| 2019 | 3.72573 | 
| 2018 | 3.69372 | 
| 2017 | 3.67356 | 
| 2016 | 3.66697 | 
| 2015 | 3.66831 | 
| 2014 | 3.67623 | 
| 2013 | 3.68591 | 
| 2012 | 3.69308 | 
| 2011 | 3.69911 | 
| 2010 | 3.7079 | 
| 2009 | 3.72306 | 
| 2008 | 3.74407 | 
| 2007 | 3.76961 | 
| 2006 | 3.79863 | 
| 2005 | 3.82997 | 
| 2004 | 3.86389 | 
| 2003 | 3.90053 | 
| 2002 | 3.93944 | 
| 2001 | 3.9802 | 
| 2000 | 4.02277 | 
| 1999 | 4.06753 | 
| 1998 | 4.11447 | 
| 1997 | 4.16359 | 
| 1996 | 4.21624 | 
| 1995 | 4.27255 | 
| 1994 | 4.29517 | 
| 1993 | 4.26176 | 
| 1992 | 4.17501 | 
| 1991 | 4.03616 | 
| 1990 | 3.90197 | 
| 1989 | 3.81714 | 
| 1988 | 3.78043 | 
| 1987 | 3.75567 | 
| 1986 | 3.73798 | 
| 1985 | 3.74336 | 
| 1984 | 3.77375 | 
| 1983 | 3.831 | 
| 1982 | 3.90455 | 
| 1981 | 3.9776 | 
| 1980 | 4.03303 | 
| 1979 | 4.06862 | 
| 1978 | 4.08377 | 
| 1977 | 4.07977 | 
| 1976 | 4.07629 | 
| 1975 | 4.0894 | 
| 1974 | 4.11492 | 
| 1973 | 4.15161 | 
| 1972 | 4.20106 | 
| 1971 | 4.25125 | 
| 1970 | 4.29575 | 
| 1969 | 4.33643 | 
| 1968 | 4.3732 | 
| 1967 | 4.40539 | 
| 1966 | 4.43822 | 
| 1965 | 4.47481 | 
| 1964 | 4.51361 | 
| 1963 | 4.55396 | 
| 1962 | 4.59643 | 
| 1961 | 4.63918 | 
| 1960 | 4.68119 |