| Value | Category | Cases | |
|---|---|---|---|
| 0 | 16 |
55.2%
|
|
| 1 | 4 |
13.8%
|
|
| 2 | 1 |
3.4%
|
|
| 3 | 2 |
6.9%
|
|
| 888 | Uses product, but not every day | 2 |
6.9%
|
| 999 | Refused | 4 |
13.8%
|
| Sysmiss | 16933 |