| Value | Category | Cases | |
|---|---|---|---|
| 1 | zero | 2528 |
80.6%
|
| 2 | one | 551 |
17.6%
|
| 3 | two | 49 |
1.6%
|
| 4 | >two | 7 |
0.2%
|
| Sysmiss | 35 |