| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| -777 | Not applicable (never) | 0 |
0%
|
| -666 | Other (please specify) | 47 |
0.2%
|
| 1 | Daily | 2957 |
11.1%
|
| 2 | Weekly | 6178 |
23.1%
|
| 3 | Monthly | 2645 |
9.9%
|
| 4 | Quarterly | 469 |
1.8%
|
| 5 | Irregularly | 14409 |
54%
|
| 11 | .R | 6997 | |
| Sysmiss | 9420 |