| Value | Category | Cases | |
|---|---|---|---|
| 1974 | 1 |
0%
|
|
| 1982 | 2 |
0%
|
|
| 1983 | 2 |
0%
|
|
| 1984 | 3 |
0%
|
|
| 1985 | 1 |
0%
|
|
| 1988 | 1 |
0%
|
|
| 1989 | 2 |
0%
|
|
| 1990 | 3 |
0%
|
|
| 1991 | 2 |
0%
|
|
| 1992 | 3 |
0%
|
|
| 1994 | 2 |
0%
|
|
| 1995 | 2 |
0%
|
|
| 1997 | 5 |
0%
|
|
| 1998 | 8 |
0%
|
|
| 1999 | 4 |
0%
|
|
| 2000 | 21 |
0.1%
|
|
| 2001 | 2 |
0%
|
|
| 2002 | 10 |
0%
|
|
| 2003 | 6 |
0%
|
|
| 2004 | 4 |
0%
|
|
| 2005 | 9 |
0%
|
|
| 2006 | 7 |
0%
|
|
| 2007 | 12 |
0%
|
|
| 2008 | 16 |
0%
|
|
| 2009 | 27 |
0.1%
|
|
| 2010 | 83 |
0.2%
|
|
| 2011 | 19 |
0%
|
|
| 2012 | 55 |
0.1%
|
|
| 2013 | 48 |
0.1%
|
|
| 2014 | 91 |
0.2%
|
|
| 2015 | 256 |
0.6%
|
|
| 2016 | 279 |
0.7%
|
|
| 2017 | 352 |
0.9%
|
|
| 2018 | 426 |
1.1%
|
|
| 2019 | 424 |
1.1%
|
|
| 2020 | 441 |
1.1%
|
|
| 2021 | 130 |
0.3%
|
|
| 2022 | 1 |
0%
|
|
| z | Not applicable | 34632 |
86.1%
|
| d | Inconsistency set to missing | 2761 |
6.9%
|
| a | Don't know | 77 |
0.2%
|
| b | Refused to answer | 5 |
0%
|