| 2006 | |
|---|---|
| Kisumu | 69.0 |
| Siaya | 60.2 |
| Mombasa | 60.1 |
| Tharaka Nithi | 57.7 |
| Nyamira | 54.2 |
| Kilifi | 53.5 |
| Lamu | 53.2 |
| Migori | 53.2 |
| Taita Taveta | 51.7 |
| Homa Bay | 50.2 |
| Isiolo | 50.0 |
| Tana River | 49.4 |
| Kirinyaga | 47.4 |
| Busia | 46.3 |
| Kisii | 46.0 |
| Kwale | 43.6 |
| Nairobi | 41.8 |
| Uasin Gishu | 41.8 |
| Embu | 38.6 |
| Kakamega | 38.6 |
| Bungoma | 37.9 |
| Garissa | 35.1 |
| Kericho | 34.9 |
| Machakos | 34.8 |
| Kajiado | 34.3 |
| Baringo | 32.8 |
| West Pokot | 32.1 |
| Meru | 31.7 |
| Nandi | 31.2 |
| Wajir | 30.9 |
| Vihiga | 29.3 |
| Bomet | 26.9 |
| Trans Nzoia | 25.7 |
| Kiambu | 21.6 |
| Marsabit | 19.2 |
| Makueni | 17.6 |
| Laikipia | 17.3 |
| Narok | 16.9 |
| Kitui | 16.6 |
| Muranga | 15.4 |
| Nakuru | 14.5 |
| Nyeri | 11.3 |
| Elgeyo Marakwet | 10.9 |
| Turkana | 7.7 |
| Mandera | 5.4 |
| Samburu | 3.4 |
| Nyandarua | 1.6 |