Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 16 |
11.6%
|
1936 | 1 |
0.7%
|
|
1975 | 1 |
0.7%
|
|
1978 | 2 |
1.4%
|
|
1980 | 1 |
0.7%
|
|
1982 | 1 |
0.7%
|
|
1990 | 2 |
1.4%
|
|
1991 | 3 |
2.2%
|
|
1992 | 1 |
0.7%
|
|
1993 | 2 |
1.4%
|
|
1994 | 4 |
2.9%
|
|
1995 | 4 |
2.9%
|
|
1996 | 4 |
2.9%
|
|
1997 | 2 |
1.4%
|
|
1998 | 5 |
3.6%
|
|
1999 | 5 |
3.6%
|
|
2000 | 11 |
8%
|
|
2001 | 7 |
5.1%
|
|
2002 | 2 |
1.4%
|
|
2003 | 1 |
0.7%
|
|
2004 | 4 |
2.9%
|
|
2005 | 5 |
3.6%
|
|
2006 | 7 |
5.1%
|
|
2007 | 7 |
5.1%
|
|
2008 | 2 |
1.4%
|
|
2009 | 5 |
3.6%
|
|
2010 | 8 |
5.8%
|
|
2011 | 4 |
2.9%
|
|
2012 | 3 |
2.2%
|
|
2013 | 3 |
2.2%
|
|
2014 | 2 |
1.4%
|
|
2015 | 4 |
2.9%
|
|
2016 | 7 |
5.1%
|
|
2017 | 2 |
1.4%
|
|
Sysmiss | 222 |