| 2009 | |
|---|---|
| Tana River | 67.9 |
| Nyeri | 19.8 |
| Nairobi | 18.1 |
| Muranga | 17.7 |
| Nyamira | 17.7 |
| Kiambu | 17.3 |
| Kisii | 17.3 |
| Kirinyaga | 16.1 |
| Embu | 15.5 |
| Mombasa | 15.3 |
| Makueni | 14.7 |
| Machakos | 14.6 |
| Nyandarua | 14.2 |
| Laikipia | 13.9 |
| Nakuru | 13.4 |
| Uasin Gishu | 13.1 |
| Kisumu | 13.0 |
| Vihiga | 12.7 |
| Meru | 12.6 |
| Kajiado | 12.5 |
| Taita Taveta | 12.1 |
| Baringo | 11.7 |
| Kericho | 11.4 |
| Bomet | 11.3 |
| Bungoma | 11.0 |
| Kakamega | 11.0 |
| Trans Nzoia | 10.9 |
| Siaya | 10.8 |
| Nandi | 10.7 |
| Elgeyo Marakwet | 10.6 |
| Tharaka Nithi | 10.4 |
| Migori | 10.3 |
| Kitui | 10.0 |
| Busia | 9.8 |
| Lamu | 9.7 |
| Isiolo | 9.7 |
| Garissa | 9.6 |
| Mandera | 9.6 |
| Turkana | 9.5 |
| Wajir | 9.0 |
| Marsabit | 8.9 |
| Narok | 7.2 |
| Kilifi | 7.1 |
| Samburu | 6.5 |
| Kwale | 6.3 |
| West Pokot | 6.1 |