| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 0 |
0%
|
| 2 | Weekly | 169 |
5.1%
|
| 3 | Monthly | 1158 |
35%
|
| 4 | Once a term | 1749 |
52.9%
|
| 5 | Never | 233 |
7%
|
| Sysmiss | 18 |