| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 6 |
0.1%
|
|
| 1998 | 27 |
0.5%
|
|
| 1999 | 90 |
1.5%
|
|
| 2000 | 282 |
4.7%
|
|
| 2001 | 457 |
7.6%
|
|
| 2002 | 449 |
7.5%
|
|
| 2003 | 473 |
7.9%
|
|
| 2004 | 479 |
8%
|
|
| 2005 | 512 |
8.6%
|
|
| 2006 | 491 |
8.2%
|
|
| 2007 | 712 |
11.9%
|
|
| 2008 | 625 |
10.5%
|
|
| 3333 | Missing | 262 |
4.4%
|
| 5555 | Not Applicable | 244 |
4.1%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 868 |
14.5%
|
| Sysmiss | 3627 |