| Value | Category |
|---|---|
| 0 | Private households |
| 1 | Union government |
| 2 | Provincial administration |
| 3 | Local authorities |
| 4 | Bantu authorities |
| 5 | Group Area Development Board |
| 6 | CSIR and SABS |
| 7 | SA Railways and Harbours |
| 8 | Escom, Rand Water Board, etc |
| 9 | Agriculture, mining, manufacturing, etc |
| 99 | Societies, clubs and other |