| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 1 |
0.1%
|
|
| 1994 | 5 |
0.4%
|
|
| 1996 | 2 |
0.1%
|
|
| 1997 | 6 |
0.4%
|
|
| 1998 | 13 |
0.9%
|
|
| 1999 | 18 |
1.3%
|
|
| 2000 | 26 |
1.9%
|
|
| 2001 | 30 |
2.2%
|
|
| 2002 | 40 |
2.9%
|
|
| 2003 | 48 |
3.5%
|
|
| 2004 | 65 |
4.7%
|
|
| 2005 | 73 |
5.3%
|
|
| 2006 | 109 |
7.9%
|
|
| 2007 | 112 |
8.2%
|
|
| 2008 | 102 |
7.4%
|
|
| 2009 | 114 |
8.3%
|
|
| 2010 | 110 |
8%
|
|
| 2011 | 103 |
7.5%
|
|
| 2012 | 75 |
5.5%
|
|
| 3333 | Missing | 39 |
2.8%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 281 |
20.5%
|
| Sysmiss | 11010 |