| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes with card | 449 |
42.7%
|
| 2 | Yes with exercise book | 28 |
2.7%
|
| 3 | Yes from NIDS | 1 |
0.1%
|
| 4 | Yes from memory | 256 |
24.4%
|
| 5 | No with card | 118 |
11.2%
|
| 6 | No with exercise book | 6 |
0.6%
|
| 7 | No from NIDS | 7 |
0.7%
|
| 8 | No from memory | 156 |
14.8%
|
| 9 | Don’t know | 30 |
2.9%
|
| Sysmiss | 1532 |