| Value |
Category |
| 1970-03-01 |
|
| 1978-08-01 |
|
| 1981-10-01 |
|
| 1988-09-01 |
|
| 1989-01-01 |
|
| 1989-10-01 |
|
| 1990-03-01 |
|
| 1993-03-01 |
|
| 1993-11-01 |
|
| 1996-08-01 |
|
| 1997-11-01 |
|
| 2001-05-01 |
|
| 2002-11-01 |
|
| 2003-01-01 |
|
| 2003-09-01 |
|
| 2005-06-01 |
|
| 2006-10-01 |
|
| 2007-09-01 |
|
| 2007-10-01 |
|
| 2008-03-01 |
|
| 2008-08-01 |
|
| 2008-10-01 |
|
| 2008-12-01 |
|
| 2009-07-01 |
|
| 2009-09-01 |
|
| 2009-10-01 |
|
| 2010-01-01 |
|
| 2010-02-01 |
|
| 2010-06-01 |
|
| 2010-09-01 |
|
| 2010-10-01 |
|
| 2010-11-01 |
|
| 2011-01-01 |
|
| 2011-02-01 |
|
| 2011-03-01 |
|
| 2011-06-01 |
|
| 2011-07-01 |
|
| 2011-09-01 |
|
| 2011-10-01 |
|
| 2011-11-01 |
|
| 2011-12-01 |
|
| 2012-03-01 |
|
| 2012-06-01 |
|
| 2012-07-01 |
|
| 2012-08-01 |
|
| 2012-09-01 |
|
| 2012-10-01 |
|
| 2012-11-01 |
|
| 2013-03-01 |
|
| 2013-06-01 |
|
| 2013-07-01 |
|
| 2013-08-01 |
|
| 2013-09-01 |
|
| 2013-10-01 |
|
| 2013-11-01 |
|
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.