| Value | Category | Cases | |
|---|---|---|---|
| 1995 | 2 |
0.4%
|
|
| 1996 | 11 |
2.1%
|
|
| 1997 | 11 |
2.1%
|
|
| 1998 | 10 |
1.9%
|
|
| 1999 | 13 |
2.5%
|
|
| 2000 | 11 |
2.1%
|
|
| 2001 | 16 |
3%
|
|
| 2002 | 24 |
4.6%
|
|
| 2003 | 20 |
3.8%
|
|
| 2004 | 17 |
3.2%
|
|
| 2005 | 24 |
4.6%
|
|
| 2006 | 32 |
6.1%
|
|
| 2007 | 26 |
5%
|
|
| 2008 | 74 |
14.1%
|
|
| 2009 | 122 |
23.2%
|
|
| 2010 | 82 |
15.6%
|
|
| 2011 | 5 |
1%
|
|
| 2222 | Not asked in Phase 2 | 0 |
0%
|
| 3333 | Missing | 20 |
3.8%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 5 |
1%
|
| Sysmiss | 10768 |