| Value |
Category |
| 1 |
Five years and more |
| 2 |
Four years |
| 3 |
Three years |
| 4 |
Two years |
| 5 |
One year or less |
| 6 |
No longer receiving |
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.