| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 7083 |
1.5%
|
| 2 | One | 25325 |
5.3%
|
| 3 | Two | 46793 |
9.8%
|
| 4 | Three or more | 397878 |
83.4%
|
| 7 | N/A | 3647 | |
| 8 | Invalid | 806 | |
| 9 | Missing | 3958 |