Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
6.5%
|
1958 | 1 |
1.3%
|
|
1962 | 1 |
1.3%
|
|
1966 | 1 |
1.3%
|
|
1969 | 1 |
1.3%
|
|
1970 | 3 |
3.9%
|
|
1971 | 1 |
1.3%
|
|
1974 | 2 |
2.6%
|
|
1977 | 1 |
1.3%
|
|
1978 | 1 |
1.3%
|
|
1979 | 2 |
2.6%
|
|
1980 | 1 |
1.3%
|
|
1981 | 1 |
1.3%
|
|
1982 | 1 |
1.3%
|
|
1983 | 1 |
1.3%
|
|
1989 | 1 |
1.3%
|
|
1990 | 3 |
3.9%
|
|
1991 | 1 |
1.3%
|
|
1995 | 3 |
3.9%
|
|
1996 | 1 |
1.3%
|
|
1997 | 2 |
2.6%
|
|
1998 | 1 |
1.3%
|
|
1999 | 2 |
2.6%
|
|
2000 | 1 |
1.3%
|
|
2001 | 2 |
2.6%
|
|
2004 | 5 |
6.5%
|
|
2005 | 4 |
5.2%
|
|
2006 | 3 |
3.9%
|
|
2007 | 2 |
2.6%
|
|
2008 | 2 |
2.6%
|
|
2009 | 2 |
2.6%
|
|
2011 | 2 |
2.6%
|
|
2012 | 1 |
1.3%
|
|
2013 | 4 |
5.2%
|
|
2014 | 2 |
2.6%
|
|
2015 | 5 |
6.5%
|
|
2016 | 3 |
3.9%
|
|
2017 | 2 |
2.6%
|
|
Sysmiss | 165 |