| 2011 | 2014 | 2015 | |
|---|---|---|---|
| Manicaland | 16.4 | 35.8 | 12.5 |
| Mashonaland Central | 13.5 | 36.5 | 9.0 |
| Mashonaland East | 10.0 | 26.3 | 8.7 |
| Mashonaland West | 5.0 | 24.1 | 11.1 |
| Matabeleland North | 18.2 | 39.2 | 15.8 |
| Matabeleland South | 2.6 | 2.1 | 6.7 |
| Midlands | 8.7 | 17.8 | 7.6 |
| Masvingo Province | 4.9 | 27.5 | 8.9 |
| Harare | 6.0 | 8.2 | 2.6 |
| Bulawayo | 16.7 | 9.5 | 9.5 |