| Value |
Category |
| 1 |
JAN-MAR 2009 |
| 2 |
APR-JUN 2009 |
| 3 |
JUL-SEPT 2009 |
| 4 |
OCT-DEC 2009 |
| 5 |
JAN-MAR 2010 |
| 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.