| Value | Category | Cases | |
|---|---|---|---|
| 0 | 14 |
2.2%
|
|
| 1 | 500 |
79.5%
|
|
| 2 | 94 |
14.9%
|
|
| 3 | 16 |
2.5%
|
|
| 4 | 3 |
0.5%
|
|
| 5 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| Sysmiss | 1526 |