| Value | Category | 
|---|---|
| 1 | apprenticeship program | 
| 2 | technical college | 
| 3 | workers college | 
| 4 | academic secondary school | 
| 5 | technikon diploma course | 
| 6 | university institution | 
| 7 | commercial school, ngo or government | 
| 8 | training at work | 
| 9 | on-the-job training | 
| 10 | training received on previous job | 
| 11 | correspondence course | 
| 12 | other | 
| 99 | no answer |