| 年份 | 肯尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 1.61955 | 
| 2021 | 1.57727 | 
| 2020 | 1.53009 | 
| 2019 | 1.47812 | 
| 2018 | 1.41595 | 
| 2017 | 1.34528 | 
| 2016 | 1.27518 | 
| 2015 | 1.20655 | 
| 2014 | 1.16871 | 
| 2013 | 1.1629 | 
| 2012 | 1.15991 | 
| 2011 | 1.1589 | 
| 2010 | 1.16358 | 
| 2009 | 1.14204 | 
| 2008 | 1.08889 | 
| 2007 | 1.03983 | 
| 2006 | 0.998197 | 
| 2005 | 0.963806 | 
| 2004 | 0.939063 | 
| 2003 | 0.926022 | 
| 2002 | 0.923765 | 
| 2001 | 0.931697 | 
| 2000 | 0.949124 | 
| 1999 | 0.974932 | 
| 1998 | 1.00655 | 
| 1997 | 1.03875 | 
| 1996 | 1.06707 | 
| 1995 | 1.09133 | 
| 1994 | 1.11192 | 
| 1993 | 1.12848 | 
| 1992 | 1.14217 | 
| 1991 | 1.15335 | 
| 1990 | 1.16349 | 
| 1989 | 1.17551 | 
| 1988 | 1.19091 | 
| 1987 | 1.20927 | 
| 1986 | 1.22719 | 
| 1985 | 1.24348 | 
| 1984 | 1.25917 | 
| 1983 | 1.27533 | 
| 1982 | 1.29032 | 
| 1981 | 1.30155 | 
| 1980 | 1.313 | 
| 1979 | 1.32712 | 
| 1978 | 1.34234 | 
| 1977 | 1.35673 | 
| 1976 | 1.36396 | 
| 1975 | 1.36506 | 
| 1974 | 1.36457 | 
| 1973 | 1.35757 | 
| 1972 | 1.34583 | 
| 1971 | 1.34092 | 
| 1970 | 1.34411 | 
| 1969 | 1.35045 | 
| 1968 | 1.36304 | 
| 1967 | 1.386 | 
| 1966 | 1.41525 | 
| 1965 | 1.44481 | 
| 1964 | 1.4732 | 
| 1963 | 1.50144 | 
| 1962 | 1.52741 | 
| 1961 | 1.55194 | 
| 1960 | 1.582 |