| Value | Category |
|---|---|
| 1 | new born |
| 2 | adopted child |
| 3 | marriage/cohabitation |
| 4 | divorce/ separation |
| 5 | returned from college/university |
| 6 | returned from institution |
| 7 | moved in with parent or relative |
| 8 | shared accomodation |
| 9 | return from work migration |
| 10 | mistakenly not reported or forgotten last visit |
| 11 | others specify |
| Sysmiss |