| Value | Category | Cases | |
|---|---|---|---|
| 1971 | 1 |
1.3%
|
|
| 1977 | 1 |
1.3%
|
|
| 1978 | 1 |
1.3%
|
|
| 1979 | 1 |
1.3%
|
|
| 1983 | 1 |
1.3%
|
|
| 1989 | 1 |
1.3%
|
|
| 1994 | 1 |
1.3%
|
|
| 1995 | 1 |
1.3%
|
|
| 1999 | 1 |
1.3%
|
|
| 2000 | 1 |
1.3%
|
|
| 2001 | 1 |
1.3%
|
|
| 2003 | 1 |
1.3%
|
|
| 2004 | 2 |
2.6%
|
|
| 2005 | 1 |
1.3%
|
|
| 2007 | 1 |
1.3%
|
|
| 2008 | 3 |
3.8%
|
|
| 2009 | 3 |
3.8%
|
|
| 2010 | 2 |
2.6%
|
|
| 2222 | 2222. Not asked in Phase 2 | 0 |
0%
|
| 3333 | 3333. Missing | 1 |
1.3%
|
| 5555 | 5555. Not Applicable | 0 |
0%
|
| 8888 | 8888. Refused | 0 |
0%
|
| 9999 | 9999. Don't know | 53 |
67.9%
|
| Sysmiss | 21796 |