| Value | Category | Cases | |
|---|---|---|---|
| 0 | 347 |
8.1%
|
|
| 2 | 1521 |
35.3%
|
|
| 3 | 1590 |
36.9%
|
|
| 4 | 695 |
16.1%
|
|
| 5 | 141 |
3.3%
|
|
| 6 | 8 |
0.2%
|
|
| 7 | 4 |
0.1%
|
|
| Sysmiss | 359 |