| Value | Category |
|---|---|
| 1 | About one and a half times as much |
| 2 | About twice as much |
| 3 | About three times as much |
| 4 | About four times as much |
| 5 | More than four times as much |
| -5 | Missing; Not asked by the interviewer |
| -4 | Not asked |
| -3 | Not applicable |
| -2 | No answer |
| -1 | Don´t know |