| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 244 |
82.7%
|
| 2 | One | 21 |
7.1%
|
| 3 | Two | 9 |
3.1%
|
| 4 | Three | 12 |
4.1%
|
| 5 | More than three | 9 |
3.1%
|
| Sysmiss | 81 |