| Value | Category | Cases | |
|---|---|---|---|
| 1970 | 2 |
2.2%
|
|
| 1981 | 1 |
1.1%
|
|
| 1985 | 1 |
1.1%
|
|
| 1987 | 1 |
1.1%
|
|
| 1988 | 2 |
2.2%
|
|
| 1990 | 1 |
1.1%
|
|
| 1992 | 3 |
3.3%
|
|
| 1993 | 1 |
1.1%
|
|
| 1994 | 2 |
2.2%
|
|
| 1996 | 4 |
4.3%
|
|
| 1998 | 2 |
2.2%
|
|
| 1999 | 4 |
4.3%
|
|
| 2000 | 4 |
4.3%
|
|
| 2001 | 5 |
5.4%
|
|
| 2003 | 9 |
9.8%
|
|
| 2004 | 7 |
7.6%
|
|
| 2005 | 4 |
4.3%
|
|
| 2006 | 6 |
6.5%
|
|
| 2007 | 13 |
14.1%
|
|
| 2008 | 7 |
7.6%
|
|
| 3333 | Missing | 13 |
14.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 0 |
0%
|
| Sysmiss | 16780 |