| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 1 |
0.3%
|
| 2 | oneORless | 9 |
2.6%
|
| 3 | threeOrmore | 134 |
38.8%
|
| 4 | twoORmore | 201 |
58.3%
|
| Missing value | 13 |