| Value | Category | Cases | |
|---|---|---|---|
| 98 | Don't know | 0 |
0%
|
| 998 | Don't know | 0 |
0%
|
| 1995 | 1 |
3%
|
|
| 1998 | 2 |
6.1%
|
|
| 1999 | 2 |
6.1%
|
|
| 2001 | 1 |
3%
|
|
| 2002 | 1 |
3%
|
|
| 2004 | 2 |
6.1%
|
|
| 2005 | 1 |
3%
|
|
| 2006 | 1 |
3%
|
|
| 2007 | 5 |
15.2%
|
|
| 2008 | 5 |
15.2%
|
|
| 2009 | 2 |
6.1%
|
|
| 2010 | 4 |
12.1%
|
|
| 2011 | 1 |
3%
|
|
| 2012 | 1 |
3%
|
|
| 9998 | Don't know | 4 |
12.1%
|
| 9999 | Missing | 0 |
0%
|
| 99998 | Don't know | 0 |
0%
|
| Sysmiss | 1677 |