| Value | Category |
|---|---|
| 1 | astawu |
| 2 | solidariteit |
| 3 | popcro |
| 4 | nehawu |
| 5 | sadtu |
| 6 | xavier |
| 7 | samato |
| 8 | saccau |
| 9 | metal |
| 10 | trade union |
| 11 | psa |
| 12 | cosatu |
| 13 | south african medical workers union |
| 14 | mine workers |
| 15 | samu |
| 16 | numsa |
| 17 | uwasa |
| 18 | natu |
| 19 | sasbo |
| 20 | no membership to any trade union |
| 21 | don't know |