| Value | Category | Cases | |
|---|---|---|---|
| 1 | Spraying | 249 |
27.3%
|
| 2 | Dipping | 230 |
25.2%
|
| 3 | Smearing | 20 |
2.2%
|
| 4 | None | 411 |
45.1%
|
| 8 | Other........ | 2 |
0.2%
|
| Sysmiss | 94 |