| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Never, it always has enough on hand | 20 |
18%
|
| 2 | Rarely | 77 |
69.4%
|
| 3 | Frequently, at least once every three months | 14 |
12.6%
|