| 2005 | 2010 | 2011 | |
|---|---|---|---|
| Tigray | 12,75 | 12,92 | 182,28 |
| Oromiya | 30,38 | 65,14 | 34,34 |
| Amhara | 21,98 | 23,22 | 25,83 |
| Southern Nations, Nationalities, and People's Region | 7,66 | 16,12 | |
| Dire Dawa City Administration | 0,61 | 3,09 | 3,76 |
| Somali | 1,58 | 2,81 | 2,97 |
| Harari | 0,31 | 0,81 | 0,21 |
| Benishangul Gumz | 0,06 | 0,58 | 0,12 |
| Afar | 6,99 | 3,86 | |
| Addis Ababa | 0,01 |