| Value | Category | Cases | |
|---|---|---|---|
| 1940 | 1 |
0.4%
|
|
| 1943 | 1 |
0.4%
|
|
| 1953 | 1 |
0.4%
|
|
| 1956 | 1 |
0.4%
|
|
| 1965 | 1 |
0.4%
|
|
| 1973 | 1 |
0.4%
|
|
| 1975 | 2 |
0.7%
|
|
| 1976 | 2 |
0.7%
|
|
| 1978 | 1 |
0.4%
|
|
| 1979 | 3 |
1.1%
|
|
| 1980 | 2 |
0.7%
|
|
| 1981 | 1 |
0.4%
|
|
| 1982 | 2 |
0.7%
|
|
| 1984 | 2 |
0.7%
|
|
| 1985 | 2 |
0.7%
|
|
| 1986 | 1 |
0.4%
|
|
| 1987 | 1 |
0.4%
|
|
| 1988 | 2 |
0.7%
|
|
| 1989 | 2 |
0.7%
|
|
| 1990 | 4 |
1.5%
|
|
| 1992 | 1 |
0.4%
|
|
| 1993 | 1 |
0.4%
|
|
| 1994 | 3 |
1.1%
|
|
| 1995 | 2 |
0.7%
|
|
| 1996 | 2 |
0.7%
|
|
| 1998 | 3 |
1.1%
|
|
| 1999 | 4 |
1.5%
|
|
| 2000 | 8 |
2.9%
|
|
| 2001 | 4 |
1.5%
|
|
| 2002 | 3 |
1.1%
|
|
| 2003 | 2 |
0.7%
|
|
| 2004 | 6 |
2.2%
|
|
| 2005 | 11 |
4%
|
|
| 2006 | 5 |
1.8%
|
|
| 2007 | 8 |
2.9%
|
|
| 2008 | 5 |
1.8%
|
|
| 2009 | 6 |
2.2%
|
|
| 2010 | 8 |
2.9%
|
|
| 2011 | 8 |
2.9%
|
|
| 2012 | 16 |
5.8%
|
|
| 2013 | 15 |
5.5%
|
|
| 2014 | 17 |
6.2%
|
|
| 2015 | 22 |
8%
|
|
| 2016 | 41 |
15%
|
|
| 2017 | 27 |
9.9%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 13 |
4.7%
|
| Sysmiss | 725 |