| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3 |
1.4%
|
| 2 | One | 9 |
4.3%
|
| 3 | Two | 10 |
4.8%
|
| 4 | Three | 44 |
21.1%
|
| 5 | Four | 127 |
60.8%
|
| 6 | More than four | 16 |
7.7%
|
| Sysmiss | 466 |