| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 504 |
67%
|
| 1 | 107 |
14.2%
|
|
| 2 | 89 |
11.8%
|
|
| 3 | 17 |
2.3%
|
|
| 4 | 21 |
2.8%
|
|
| 5 | 10 |
1.3%
|
|
| 10 | 1 |
0.1%
|
|
| 11 | 1 |
0.1%
|
|
| 20 | 20 or more | 2 |
0.3%
|
| Sysmiss | 895 |