| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 1638 |
31.5%
|
| 1 | Less than 20 | 3057 |
58.7%
|
| 2 | 21 to 50 | 442 |
8.5%
|
| 3 | 51 to 100 | 56 |
1.1%
|
| 4 | more than 100 | 15 |
0.3%
|
| Sysmiss | 7598 |