| Value |
Category |
| 1 |
1st half Mar |
| 2 |
2nd half Mar |
| 3 |
1st half Apr |
| 4 |
2nd half Apr |
| 5 |
1st half May |
| 6 |
2nd half May |
| 7 |
1st half Jun |
| 8 |
2nd half Jun |
| 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.