| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. none | 37 |
1.2%
|
| 1 | 1. 1 or 2 | 332 |
10.6%
|
| 2 | 2. 3 to 5 | 1007 |
32.1%
|
| 3 | 3. 6 to 8 | 1057 |
33.7%
|
| 4 | 4. 9 or 10 | 704 |
22.4%
|
| Sysmiss | 1401 |