| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1–2 | 163 |
5.6%
|
| 2 | 3–4 | 491 |
16.9%
|
| 3 | 5–6 | 682 |
23.4%
|
| 4 | 7–9 | 979 |
33.6%
|
| 5 | 10–14 | 504 |
17.3%
|
| 6 | 15+ | 85 |
2.9%
|
| Missing value | 7 |
0.2%
|