| Value |
Category |
| -9 |
Don't know (spontaneous) |
| 1 |
Entirely by this establishment |
| 2 |
By this establishment in cooperation with another firm or institution |
| 3 |
Entirely by another firm or institution |
| 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.
