| Value | Category | Cases | |
|---|---|---|---|
| 1971 | 1 |
3%
|
|
| 1972 | 1 |
3%
|
|
| 1984 | 1 |
3%
|
|
| 1987 | 2 |
6.1%
|
|
| 1993 | 2 |
6.1%
|
|
| 1998 | 2 |
6.1%
|
|
| 2000 | 1 |
3%
|
|
| 2001 | 3 |
9.1%
|
|
| 2004 | 1 |
3%
|
|
| 2005 | 1 |
3%
|
|
| 2006 | 2 |
6.1%
|
|
| 2007 | 1 |
3%
|
|
| 2008 | 5 |
15.2%
|
|
| 2010 | 1 |
3%
|
|
| 2011 | 1 |
3%
|
|
| 2012 | 3 |
9.1%
|
|
| 2013 | 2 |
6.1%
|
|
| 2014 | 1 |
3%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 2 |
6.1%
|
| Sysmiss | 966 |