| Value | Category | Cases | |
|---|---|---|---|
| 1 | Own preparation | 0 |
0%
|
| 2 | Bought | 0 |
0%
|
| 3 | Received for free | 14 |
100%
|
| 4 | Other source | 0 |
0%
|
| Sysmiss | 19951 |