| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes with card | 444 |
45.6%
|
| 2 | Yes with exercise book | 18 |
1.8%
|
| 3 | Yes from NIDS | 2 |
0.2%
|
| 4 | Yes from memory | 203 |
20.9%
|
| 5 | No with card | 150 |
15.4%
|
| 6 | No with exercise book | 7 |
0.7%
|
| 7 | No from NIDS | 3 |
0.3%
|
| 8 | No from memory | 127 |
13.1%
|
| 9 | Don’t know | 19 |
2%
|
| Sysmiss | 1551 |