| Value | Category | Cases | |
|---|---|---|---|
| 1966 | 1 |
0%
|
|
| 1970 | 1 |
0%
|
|
| 1973 | 2 |
0.1%
|
|
| 1975 | 1 |
0%
|
|
| 1976 | 2 |
0.1%
|
|
| 1979 | 1 |
0%
|
|
| 1980 | 1 |
0%
|
|
| 1981 | 2 |
0.1%
|
|
| 1982 | 1 |
0%
|
|
| 1983 | 2 |
0.1%
|
|
| 1985 | 3 |
0.1%
|
|
| 1986 | 2 |
0.1%
|
|
| 1987 | 2 |
0.1%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 4 |
0.2%
|
|
| 1990 | 8 |
0.4%
|
|
| 1991 | 4 |
0.2%
|
|
| 1992 | 4 |
0.2%
|
|
| 1993 | 2 |
0.1%
|
|
| 1994 | 4 |
0.2%
|
|
| 1995 | 1 |
0%
|
|
| 1996 | 5 |
0.2%
|
|
| 1997 | 1 |
0%
|
|
| 1998 | 5 |
0.2%
|
|
| 1999 | 9 |
0.4%
|
|
| 2000 | 19 |
0.9%
|
|
| 2001 | 7 |
0.3%
|
|
| 2002 | 9 |
0.4%
|
|
| 2003 | 5 |
0.2%
|
|
| 2004 | 6 |
0.3%
|
|
| 2005 | 15 |
0.7%
|
|
| 2006 | 8 |
0.4%
|
|
| 2007 | 15 |
0.7%
|
|
| 2008 | 16 |
0.8%
|
|
| 2009 | 12 |
0.6%
|
|
| 2010 | 40 |
1.9%
|
|
| 2011 | 18 |
0.8%
|
|
| 2012 | 29 |
1.4%
|
|
| 2013 | 49 |
2.3%
|
|
| 2014 | 65 |
3.1%
|
|
| 2015 | 160 |
7.5%
|
|
| 2016 | 411 |
19.3%
|
|
| 2017 | 1039 |
48.8%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 1 |
0%
|
| 8888 | Refused | 1 |
0%
|
| 9999 | Don't know | 133 |
6.3%
|
| Sysmiss | 27983 |