Value |
Category |
1 |
2003 or earlier |
2 |
2004 |
3 |
2005 |
4 |
2006 |
5 |
2007 |
6 |
2008 |
7 |
2009 |
8 |
2010 (this year) |
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.