| Value |
Category |
| 1 |
no constraint |
| 2 |
small constraint |
| 3 |
noteworthy constraint |
| 4 |
major constraint |
| 5 |
serious constraint |
| 6 |
not related |
| 7 |
Unknown |
| 9 |
|
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.