| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
7.5%
|
|
| 1 | 159 |
66.5%
|
|
| 2 | 43 |
18%
|
|
| 3 | 11 |
4.6%
|
|
| 4 | 5 |
2.1%
|
|
| 6 | 1 |
0.4%
|
|
| 7 | 1 |
0.4%
|
|
| 8 | 1 |
0.4%
|
|
| Sysmiss | 6718 |