Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 19 |
8.8%
|
1943 | 1 |
0.5%
|
|
1973 | 2 |
0.9%
|
|
1979 | 1 |
0.5%
|
|
1980 | 1 |
0.5%
|
|
1983 | 1 |
0.5%
|
|
1991 | 1 |
0.5%
|
|
1992 | 1 |
0.5%
|
|
1994 | 2 |
0.9%
|
|
1995 | 1 |
0.5%
|
|
1996 | 1 |
0.5%
|
|
1998 | 3 |
1.4%
|
|
2000 | 2 |
0.9%
|
|
2001 | 1 |
0.5%
|
|
2002 | 4 |
1.8%
|
|
2003 | 2 |
0.9%
|
|
2004 | 3 |
1.4%
|
|
2005 | 2 |
0.9%
|
|
2006 | 6 |
2.8%
|
|
2007 | 1 |
0.5%
|
|
2008 | 3 |
1.4%
|
|
2009 | 8 |
3.7%
|
|
2010 | 13 |
6%
|
|
2011 | 6 |
2.8%
|
|
2012 | 4 |
1.8%
|
|
2013 | 12 |
5.5%
|
|
2014 | 17 |
7.8%
|
|
2015 | 23 |
10.6%
|
|
2016 | 22 |
10.1%
|
|
2017 | 25 |
11.5%
|
|
2018 | 29 |
13.4%
|
|
Sysmiss | 1022 |