| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. none | 12 |
0.4%
|
| 1 | 1. 1 or 2 | 111 |
3.5%
|
| 2 | 2. 3 to 5 | 794 |
25.2%
|
| 3 | 3. 6 to 8 | 1080 |
34.3%
|
| 4 | 4. 9 or 10 | 1155 |
36.6%
|
| Sysmiss | 1386 |