| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 107 |
2.5%
|
| 1 | 141 |
3.4%
|
|
| 2 | 15 |
0.4%
|
|
| 99 | not applicable | 3839 |
91.4%
|
| 9999995 | missing:impute | 98 |
2.3%
|
| Sysmiss | 2403 |