| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 24774 |
81.9%
|
| 2 | One | 4344 |
14.4%
|
| 3 | Two | 851 |
2.8%
|
| 4 | Three | 139 |
0.5%
|
| 5 | Four or More | 41 |
0.1%
|
| 9 | Not Stated | 113 |
0.4%
|