| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2 |
0.1%
|
| 1 | Rarely (once or twice in the past 30 days) | 8 |
0.4%
|
| 2 | Sometimes (three to ten times in the past 30 days) | 0 |
0%
|
| 3 | Often (more than ten times in the past 30 days) | 6 |
0.3%
|
| 4 | Always (every day) | 2097 |
99.2%
|
| Sysmiss | 1 |