Value |
Category |
1991 |
|
1996 |
|
2000 |
|
2003 |
|
2004 |
|
2005 |
|
2006 |
|
2007 |
|
2008 |
|
2009 |
|
2010 |
|
2011 |
|
2012 |
|
2013 |
|
9997 |
DS |
9999 |
RA |
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.