| Value | Category | Cases | |
|---|---|---|---|
| 1976 | 2 |
1.3%
|
|
| 1978 | 4 |
2.7%
|
|
| 1979 | 1 |
0.7%
|
|
| 1981 | 1 |
0.7%
|
|
| 1982 | 2 |
1.3%
|
|
| 1983 | 1 |
0.7%
|
|
| 1987 | 1 |
0.7%
|
|
| 1989 | 2 |
1.3%
|
|
| 1990 | 2 |
1.3%
|
|
| 1992 | 1 |
0.7%
|
|
| 1995 | 1 |
0.7%
|
|
| 1996 | 1 |
0.7%
|
|
| 1999 | 1 |
0.7%
|
|
| 2000 | 2 |
1.3%
|
|
| 2001 | 1 |
0.7%
|
|
| 2002 | 5 |
3.4%
|
|
| 2003 | 1 |
0.7%
|
|
| 2005 | 1 |
0.7%
|
|
| 2006 | 3 |
2%
|
|
| 2007 | 2 |
1.3%
|
|
| 2008 | 2 |
1.3%
|
|
| 2009 | 2 |
1.3%
|
|
| 2010 | 2 |
1.3%
|
|
| 2011 | 1 |
0.7%
|
|
| 2012 | 3 |
2%
|
|
| 2013 | 2 |
1.3%
|
|
| 2014 | 1 |
0.7%
|
|
| 3333 | Missing | 3 |
2%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 1 |
0.7%
|
| 9999 | Don't know | 97 |
65.1%
|
| Sysmiss | 26655 |