| Value |
Category |
| 1 |
a set rate |
| 2 |
both a set rate and on the basis of sales |
| 3 |
on the basis of sales |
| 4 |
in kind only |
| 5 |
some other way, specify |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.