| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Once | 1822 | 1825 |
89.4%
|
| 2 | More than one time | 218 | 217 |
10.6%
|
| 88 | 76 | 72 | ||
| 99 | 12 | 10 | ||
| Sysmiss | 195 | 199 |