| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.2%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not Applicable | 0 |
0%
|
| -3 | Missing | 83 |
17.9%
|
| 1 | Dozen | 188 |
40.6%
|
| 2 | Single unit | 191 |
41.3%
|
| Sysmiss | 6833 |