| 2010 | |
|---|---|
| Abuja | 4.5 |
| Abia | 3.7 |
| Adamawa | 5.0 |
| Akwa Ibom | 4.2 |
| Anambra | 3.9 |
| Bauchi | 6.0 |
| Bayelsa | 3.7 |
| Benue | 5.3 |
| Borno | 4.8 |
| Cross River | 3.9 |
| Delta | 3.5 |
| Ebonyi | 5.3 |
| Edo | 3.9 |
| Ekiti | 3.3 |
| Enugu | 4.1 |
| Gombe | 5.1 |
| Imo | 3.7 |
| Jigawa | 6.6 |
| Kaduna | 5.3 |
| Kano | 5.7 |
| Katsina | 5.6 |
| Kebbi | 5.5 |
| Kogi | 3.1 |
| Kwara | 3.7 |
| Lagos | 3.8 |
| Nassarawa | 5.5 |
| Niger | 5.9 |
| Ogun | 3.3 |
| Ondo | 3.1 |
| Osun | 3.4 |
| Oyo | 3.9 |
| Plateau | 5.5 |
| Rivers | 4.5 |
| Sokoto | 5.6 |
| Taraba | 4.0 |
| Yobe | 5.1 |
| Zamfara | 4.9 |