Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 28 |
17.2%
|
1926 | 1 |
0.6%
|
|
1939 | 1 |
0.6%
|
|
1946 | 1 |
0.6%
|
|
1950 | 1 |
0.6%
|
|
1962 | 1 |
0.6%
|
|
1969 | 1 |
0.6%
|
|
1971 | 1 |
0.6%
|
|
1974 | 1 |
0.6%
|
|
1975 | 3 |
1.8%
|
|
1978 | 2 |
1.2%
|
|
1980 | 3 |
1.8%
|
|
1981 | 1 |
0.6%
|
|
1983 | 2 |
1.2%
|
|
1985 | 3 |
1.8%
|
|
1986 | 1 |
0.6%
|
|
1987 | 1 |
0.6%
|
|
1988 | 4 |
2.5%
|
|
1989 | 5 |
3.1%
|
|
1990 | 1 |
0.6%
|
|
1991 | 2 |
1.2%
|
|
1992 | 2 |
1.2%
|
|
1993 | 2 |
1.2%
|
|
1995 | 3 |
1.8%
|
|
1996 | 3 |
1.8%
|
|
1997 | 3 |
1.8%
|
|
1998 | 2 |
1.2%
|
|
1999 | 2 |
1.2%
|
|
2000 | 10 |
6.1%
|
|
2001 | 2 |
1.2%
|
|
2002 | 4 |
2.5%
|
|
2003 | 10 |
6.1%
|
|
2004 | 3 |
1.8%
|
|
2005 | 2 |
1.2%
|
|
2006 | 5 |
3.1%
|
|
2007 | 5 |
3.1%
|
|
2008 | 5 |
3.1%
|
|
2009 | 4 |
2.5%
|
|
2010 | 4 |
2.5%
|
|
2012 | 3 |
1.8%
|
|
2013 | 3 |
1.8%
|
|
2014 | 4 |
2.5%
|
|
2015 | 2 |
1.2%
|
|
2016 | 6 |
3.7%
|
|
2017 | 1 |
0.6%
|
|
2018 | 4 |
2.5%
|
|
2019 | 1 |
0.6%
|
|
2021 | 3 |
1.8%
|
|
2023 | 1 |
0.6%
|
|
Sysmiss | 435 |