Census Year | Kikuyu | Luhya | Kalenjin | Luo | Kamba |
1962 | 18.8 | 12.7 | 10.8 | 13.4 | 10.5 |
1969 | 20.1 | 13.3 | 10.9 | 13.9 | 10.9 |
1979 | 20.9 | 13.8 | 10.8 | 13.2 | 11.3 |
1989 | 20.8 | 14.4 | 11.5 | 12.4 | 11.4 |
2003 (DHS) | 22.9 | 14.9 | 10.6 | 12.0 | 11.5 |
2009 | 17.2 | 13.8 | 12.9 | 10.8 | 10.1 |