| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7719 |
95%
|
|
| 1 | 331 |
4.1%
|
|
| 2 | 57 |
0.7%
|
|
| 3 | 17 |
0.2%
|
|
| 4 | 4 |
0%
|
|
| 98 | don't know | 1 |
0%
|
| Sysmiss | 36485 |