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.