| Value | Category | Cases | |
|---|---|---|---|
| 99 | Missing | 0 |
0%
|
| 2003 | 1 |
1%
|
|
| 2004 | 1 |
1%
|
|
| 2005 | 1 |
1%
|
|
| 2006 | 1 |
1%
|
|
| 2007 | 5 |
5.1%
|
|
| 2008 | 17 |
17.2%
|
|
| 2009 | 19 |
19.2%
|
|
| 2010 | 16 |
16.2%
|
|
| 2011 | 19 |
19.2%
|
|
| 2012 | 19 |
19.2%
|
|
| Sysmiss | 1626 |