| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3179 |
81.3%
|
|
| 1 | 570 |
14.6%
|
|
| 2 | 129 |
3.3%
|
|
| 3 | 15 |
0.4%
|
|
| 4 | 12 |
0.3%
|
|
| 5 | 2 |
0.1%
|
|
| 6 | 2 |
0.1%
|
|
| Sysmiss | 3 |