| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes with card | 845 |
39.4%
|
| 2 | Yes with exercise book | 61 |
2.8%
|
| 3 | Yes from NIDS | 3 |
0.1%
|
| 4 | Yes from memory | 943 |
43.9%
|
| 5 | No with card | 65 |
3%
|
| 6 | No with exercise book | 5 |
0.2%
|
| 7 | No from NIDS | 0 |
0%
|
| 8 | No from memory | 131 |
6.1%
|
| 98 | Don't know | 94 |
4.4%
|
| Sysmiss | 13629 |