| 年份 | 肯尼亚 |
|---|---|
| 2023 | - |
| 2022 | 21.5143 |
| 2021 | 19.9151 |
| 2020 | 17.5959 |
| 2019 | 20.3315 |
| 2018 | 21.8728 |
| 2017 | 23.2584 |
| 2016 | 21.6153 |
| 2015 | 25.1987 |
| 2014 | 29.6977 |
| 2013 | 29.6725 |
| 2012 | 31.7587 |
| 2011 | 36.8527 |
| 2010 | 30.2699 |
| 2009 | 27.1702 |
| 2008 | 34.9045 |
| 2007 | 31.9758 |
| 2006 | 32.2515 |
| 2005 | 35.9698 |
| 2004 | 32.8667 |
| 2003 | 30.0455 |
| 2002 | 30.2747 |
| 2001 | 33.0153 |
| 2000 | 31.7215 |
| 1999 | 27.3595 |
| 1998 | 28.728 |
| 1997 | 31.3707 |
| 1996 | 32.1115 |
| 1995 | 39.154 |
| 1994 | 34.2258 |
| 1993 | 33.9549 |
| 1992 | 26.6705 |
| 1991 | 28.5561 |
| 1990 | 31.3283 |
| 1989 | 30.1233 |
| 1988 | 27.6038 |
| 1987 | 26.3975 |
| 1986 | 29.893 |
| 1985 | 30.1465 |
| 1984 | 32.054 |
| 1983 | 28.2128 |
| 1982 | 31.5583 |
| 1981 | 33.8203 |
| 1980 | 35.8998 |
| 1979 | 31.611 |
| 1978 | 38.688 |
| 1977 | 31.5931 |
| 1976 | 31.7556 |
| 1975 | 34.5116 |
| 1974 | 40.8975 |
| 1973 | 28.669 |
| 1972 | 28.7271 |
| 1971 | 35.1891 |
| 1970 | 30.6639 |
| 1969 | 28.0887 |
| 1968 | 29.2974 |
| 1967 | 29.373 |
| 1966 | 30.8728 |
| 1965 | 30.6959 |
| 1964 | 29.2122 |
| 1963 | 28.9628 |
| 1962 | 30.1252 |
| 1961 | 31.13 |
| 1960 | 33.6701 |