| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 3 |
2.9%
|
|
| 1992 | 2 |
1.9%
|
|
| 1994 | 1 |
1%
|
|
| 1995 | 3 |
2.9%
|
|
| 1996 | 1 |
1%
|
|
| 1997 | 1 |
1%
|
|
| 1999 | 1 |
1%
|
|
| 2000 | 4 |
3.9%
|
|
| 2001 | 2 |
1.9%
|
|
| 2002 | 2 |
1.9%
|
|
| 2003 | 2 |
1.9%
|
|
| 2004 | 4 |
3.9%
|
|
| 2005 | 2 |
1.9%
|
|
| 2006 | 1 |
1%
|
|
| 2007 | 8 |
7.8%
|
|
| 2008 | 1 |
1%
|
|
| 2009 | 11 |
10.7%
|
|
| 2010 | 14 |
13.6%
|
|
| 2011 | 22 |
21.4%
|
|
| 2012 | 7 |
6.8%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 11 |
10.7%
|
| Sysmiss | 22363 |