| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 4076 |
6.7%
|
| 2 | ONCE PER YEAR | 6338 |
10.4%
|
| 3 | ONCE A TERM | 37824 |
61.9%
|
| 4 | ONCE OR MORE PER MONTH | 12905 |
21.1%
|
| 9 | OMITTED | 0 |
0%
|
| Sysmiss | 253 |