| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 270 |
91.5%
|
| 2 | One | 11 |
3.7%
|
| 3 | Two | 6 |
2%
|
| 4 | Three | 1 |
0.3%
|
| 5 | More than three | 7 |
2.4%
|
| Sysmiss | 81 |