| Value | Category | Cases | |
|---|---|---|---|
| 1 | ONLY ONCE OR TWICE | 1082 |
19.9%
|
| 2 | IN SOME MONTHS BUT NOT EVERY MONTH | 2808 |
51.5%
|
| 3 | ALMOST EVERY MONTH | 1501 |
27.6%
|
| 4 | DON'T KNOW | 55 |
1%
|
| 5 | REFUSED | 2 |
0%
|
| Sysmiss | 4026 |