| Value | Category |
|---|---|
| -5 | missing; unknown |
| -4 | not asked in survey |
| -3 | not applicable |
| -2 | no answer |
| -1 | don´t know |
| 1 | more than once a week |
| 2 | once a week |
| 3 | once a month |
| 4 | christmas/easter days |
| 5 | other specific holy days |
| 6 | once a year |
| 7 | less often |
| 8 | never practically never |
| Sysmiss |