| Value | Category | Cases | |
|---|---|---|---|
| 1 | Many times | 83292 |
17.9%
|
| 2 | Two or three times | 87063 |
18.7%
|
| 3 | Once | 96651 |
20.8%
|
| 4 | Not at all | 197835 |
42.6%
|
| 7 | N/A | 540 | |
| 8 | Invalid | 3043 | |
| 9 | Miss | 47534 |