| Value | Category | Cases | |
|---|---|---|---|
| 98 | Don't know | 0 |
0%
|
| 998 | Don't know | 0 |
0%
|
| 1990 | 1 |
2.6%
|
|
| 1993 | 1 |
2.6%
|
|
| 1996 | 1 |
2.6%
|
|
| 1998 | 1 |
2.6%
|
|
| 2000 | 3 |
7.9%
|
|
| 2002 | 3 |
7.9%
|
|
| 2003 | 2 |
5.3%
|
|
| 2004 | 5 |
13.2%
|
|
| 2005 | 9 |
23.7%
|
|
| 2006 | 5 |
13.2%
|
|
| 2007 | 3 |
7.9%
|
|
| 2008 | 2 |
5.3%
|
|
| 2009 | 1 |
2.6%
|
|
| 9998 | Don't know | 1 |
2.6%
|
| Sysmiss | 1501 |