| Value | Category |
|---|---|
| 1 | Household exp. less than or equal to Kshs. 26,674.40 p.a. |
| 2 | Household exp. > Kshs. 26,674.40 but <= Kshs. 42,738.166 p.a |
| 3 | Household exp. > Kshs. 42,738.166 <= Kshs. 61,366.40 p.a. |
| 4 | Household exp. > Kshs. 61,366.40 but <= Kshs. 90,910.40 p.a. |
| 5 | Household exp. greater than Kshs. 90,910.40 p.a. |