| Value | Category | Cases | |
|---|---|---|---|
| 1 | Dropping | 959 |
13.3%
|
| 2 | Sprinklers | 95 |
1.3%
|
| 3 | Superficial | 594 |
8.2%
|
| 4 | Other/ specify…… | 47 |
0.6%
|
| Sysmiss | 5541 |