| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 2522 |
97.9%
|
| 1 | 27 |
1%
|
|
| 2 | 14 |
0.5%
|
|
| 3 | 2 |
0.1%
|
|
| 4 | 2 |
0.1%
|
|
| 5 | 5 |
0.2%
|
|
| 6 | 2 |
0.1%
|
|
| 7 | 1 |
0%
|
|
| 20 | 20 or more | 0 |
0%
|
| Sysmiss | 840 |