| Value | Category | Cases | |
|---|---|---|---|
| 0 | No records kept | 88 |
37.8%
|
| 1 | Yes, always | 95 |
40.8%
|
| 2 | Yes, sometimes | 45 |
19.3%
|
| 3 | Someone else keeps records | 5 |
2.1%
|
| Sysmiss | 2959 |