Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 174 |
6.3%
|
1920 | 1 |
0%
|
|
1924 | 1 |
0%
|
|
1935 | 1 |
0%
|
|
1938 | 1 |
0%
|
|
1948 | 2 |
0.1%
|
|
1949 | 2 |
0.1%
|
|
1950 | 1 |
0%
|
|
1952 | 1 |
0%
|
|
1955 | 1 |
0%
|
|
1956 | 3 |
0.1%
|
|
1960 | 1 |
0%
|
|
1962 | 2 |
0.1%
|
|
1964 | 1 |
0%
|
|
1965 | 1 |
0%
|
|
1967 | 1 |
0%
|
|
1968 | 2 |
0.1%
|
|
1969 | 2 |
0.1%
|
|
1970 | 11 |
0.4%
|
|
1971 | 5 |
0.2%
|
|
1972 | 2 |
0.1%
|
|
1973 | 2 |
0.1%
|
|
1974 | 6 |
0.2%
|
|
1975 | 13 |
0.5%
|
|
1976 | 8 |
0.3%
|
|
1977 | 3 |
0.1%
|
|
1978 | 8 |
0.3%
|
|
1979 | 5 |
0.2%
|
|
1980 | 26 |
0.9%
|
|
1981 | 13 |
0.5%
|
|
1982 | 19 |
0.7%
|
|
1983 | 13 |
0.5%
|
|
1984 | 17 |
0.6%
|
|
1985 | 46 |
1.7%
|
|
1986 | 11 |
0.4%
|
|
1987 | 10 |
0.4%
|
|
1988 | 18 |
0.7%
|
|
1989 | 21 |
0.8%
|
|
1990 | 104 |
3.8%
|
|
1991 | 27 |
1%
|
|
1992 | 44 |
1.6%
|
|
1993 | 32 |
1.2%
|
|
1994 | 35 |
1.3%
|
|
1995 | 98 |
3.6%
|
|
1996 | 50 |
1.8%
|
|
1997 | 40 |
1.5%
|
|
1998 | 80 |
2.9%
|
|
1999 | 46 |
1.7%
|
|
2000 | 164 |
6%
|
|
2001 | 85 |
3.1%
|
|
2002 | 86 |
3.1%
|
|
2003 | 77 |
2.8%
|
|
2004 | 80 |
2.9%
|
|
2005 | 157 |
5.7%
|
|
2006 | 121 |
4.4%
|
|
2007 | 82 |
3%
|
|
2008 | 131 |
4.8%
|
|
2009 | 97 |
3.5%
|
|
2010 | 149 |
5.4%
|
|
2011 | 79 |
2.9%
|
|
2012 | 82 |
3%
|
|
2013 | 55 |
2%
|
|
2014 | 41 |
1.5%
|
|
2015 | 94 |
3.4%
|
|
2016 | 63 |
2.3%
|
|
2017 | 38 |
1.4%
|
|
2018 | 37 |
1.3%
|
|
2019 | 12 |
0.4%
|
|
2020 | 4 |
0.1%
|
|
2021 | 9 |
0.3%
|
|
Sysmiss | 15903 |