Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 12 |
7.3%
|
1900 | 1 |
0.6%
|
|
1952 | 1 |
0.6%
|
|
1961 | 1 |
0.6%
|
|
1965 | 2 |
1.2%
|
|
1966 | 1 |
0.6%
|
|
1967 | 1 |
0.6%
|
|
1969 | 1 |
0.6%
|
|
1970 | 2 |
1.2%
|
|
1971 | 2 |
1.2%
|
|
1972 | 1 |
0.6%
|
|
1973 | 1 |
0.6%
|
|
1975 | 4 |
2.4%
|
|
1977 | 2 |
1.2%
|
|
1978 | 1 |
0.6%
|
|
1979 | 1 |
0.6%
|
|
1980 | 9 |
5.5%
|
|
1982 | 3 |
1.8%
|
|
1985 | 2 |
1.2%
|
|
1988 | 1 |
0.6%
|
|
1989 | 3 |
1.8%
|
|
1990 | 6 |
3.6%
|
|
1991 | 1 |
0.6%
|
|
1992 | 1 |
0.6%
|
|
1993 | 1 |
0.6%
|
|
1994 | 2 |
1.2%
|
|
1995 | 4 |
2.4%
|
|
1996 | 2 |
1.2%
|
|
1997 | 4 |
2.4%
|
|
1998 | 1 |
0.6%
|
|
1999 | 5 |
3%
|
|
2000 | 17 |
10.3%
|
|
2002 | 2 |
1.2%
|
|
2003 | 6 |
3.6%
|
|
2004 | 5 |
3%
|
|
2005 | 6 |
3.6%
|
|
2007 | 4 |
2.4%
|
|
2008 | 5 |
3%
|
|
2009 | 4 |
2.4%
|
|
2010 | 10 |
6.1%
|
|
2011 | 8 |
4.8%
|
|
2012 | 3 |
1.8%
|
|
2013 | 3 |
1.8%
|
|
2014 | 4 |
2.4%
|
|
2016 | 2 |
1.2%
|
|
2017 | 1 |
0.6%
|
|
2018 | 6 |
3.6%
|
|
Sysmiss | 367 |