| Value | Category | Cases | |
|---|---|---|---|
| 0 | 228 |
91.2%
|
|
| 1 | 10 |
4%
|
|
| 2 | 4 |
1.6%
|
|
| 3 | 2 |
0.8%
|
|
| 4 | 4 |
1.6%
|
|
| 5 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 1827 |