| Value | Category | Cases | |
|---|---|---|---|
| 1952 | 1 |
0.7%
|
|
| 1960 | 1 |
0.7%
|
|
| 1963 | 1 |
0.7%
|
|
| 1964 | 1 |
0.7%
|
|
| 1968 | 1 |
0.7%
|
|
| 1969 | 1 |
0.7%
|
|
| 1970 | 1 |
0.7%
|
|
| 1974 | 1 |
0.7%
|
|
| 1977 | 3 |
2.1%
|
|
| 1978 | 2 |
1.4%
|
|
| 1981 | 2 |
1.4%
|
|
| 1984 | 1 |
0.7%
|
|
| 1985 | 2 |
1.4%
|
|
| 1986 | 1 |
0.7%
|
|
| 1987 | 1 |
0.7%
|
|
| 1989 | 1 |
0.7%
|
|
| 1990 | 3 |
2.1%
|
|
| 1991 | 1 |
0.7%
|
|
| 1997 | 2 |
1.4%
|
|
| 1998 | 2 |
1.4%
|
|
| 1999 | 2 |
1.4%
|
|
| 2000 | 1 |
0.7%
|
|
| 2002 | 3 |
2.1%
|
|
| 2003 | 2 |
1.4%
|
|
| 2004 | 1 |
0.7%
|
|
| 2006 | 2 |
1.4%
|
|
| 2007 | 6 |
4.2%
|
|
| 2008 | 4 |
2.8%
|
|
| 2009 | 5 |
3.5%
|
|
| 2010 | 2 |
1.4%
|
|
| 2011 | 2 |
1.4%
|
|
| 2013 | 1 |
0.7%
|
|
| 2014 | 3 |
2.1%
|
|
| 2015 | 1 |
0.7%
|
|
| 3333 | Missing | 5 |
3.5%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 2 |
1.4%
|
| 9999 | Don't Know | 73 |
50.7%
|
| Sysmiss | 26675 |