| Value | Category | Cases | |
|---|---|---|---|
| 0 | 155 |
88.1%
|
|
| 1 | 7 |
4%
|
|
| 2 | 8 |
4.5%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 3 |
1.7%
|
|
| 10 | 1 |
0.6%
|
|
| 15 | 1 |
0.6%
|
|
| Sysmiss | 1209 |