| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 - Less than basic | 8971 |
32.7%
|
| 2 | 2 - Basic | 2996 |
10.9%
|
| 3 | 3 - Intermediate | 1768 |
6.4%
|
| 4 | 4 - Advanced | 852 |
3.1%
|
| 5 | 5 - Level not stated | 12824 |
46.8%
|