| Value | Category | Cases | |
|---|---|---|---|
| 0 | 538 |
51.5%
|
|
| 1 | 337 |
32.2%
|
|
| 2 | 110 |
10.5%
|
|
| 3 | 37 |
3.5%
|
|
| 4 | 14 |
1.3%
|
|
| 5 | 7 |
0.7%
|
|
| 8 | 1 |
0.1%
|
|
| 12 | 1 |
0.1%
|
|
| Sysmiss | 4 |