Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 33 |
2.3%
|
-7 | Never regiestered (spontaneous) | 0 |
0%
|
1937 | 1 |
0.1%
|
|
1940 | 1 |
0.1%
|
|
1948 | 1 |
0.1%
|
|
1950 | 2 |
0.1%
|
|
1952 | 1 |
0.1%
|
|
1953 | 2 |
0.1%
|
|
1956 | 1 |
0.1%
|
|
1957 | 1 |
0.1%
|
|
1960 | 2 |
0.1%
|
|
1963 | 1 |
0.1%
|
|
1964 | 1 |
0.1%
|
|
1967 | 2 |
0.1%
|
|
1968 | 2 |
0.1%
|
|
1969 | 1 |
0.1%
|
|
1970 | 2 |
0.1%
|
|
1971 | 1 |
0.1%
|
|
1972 | 5 |
0.4%
|
|
1973 | 1 |
0.1%
|
|
1974 | 2 |
0.1%
|
|
1975 | 2 |
0.1%
|
|
1976 | 1 |
0.1%
|
|
1977 | 1 |
0.1%
|
|
1978 | 1 |
0.1%
|
|
1979 | 4 |
0.3%
|
|
1980 | 9 |
0.6%
|
|
1981 | 2 |
0.1%
|
|
1982 | 7 |
0.5%
|
|
1983 | 5 |
0.4%
|
|
1984 | 6 |
0.4%
|
|
1985 | 8 |
0.6%
|
|
1986 | 6 |
0.4%
|
|
1987 | 11 |
0.8%
|
|
1988 | 6 |
0.4%
|
|
1989 | 9 |
0.6%
|
|
1990 | 12 |
0.8%
|
|
1991 | 2 |
0.1%
|
|
1992 | 18 |
1.3%
|
|
1993 | 19 |
1.3%
|
|
1994 | 20 |
1.4%
|
|
1995 | 30 |
2.1%
|
|
1996 | 18 |
1.3%
|
|
1997 | 19 |
1.3%
|
|
1998 | 34 |
2.4%
|
|
1999 | 7 |
0.5%
|
|
2000 | 50 |
3.5%
|
|
2001 | 37 |
2.6%
|
|
2002 | 42 |
3%
|
|
2003 | 27 |
1.9%
|
|
2004 | 47 |
3.3%
|
|
2005 | 49 |
3.5%
|
|
2006 | 28 |
2%
|
|
2007 | 35 |
2.5%
|
|
2008 | 48 |
3.4%
|
|
2009 | 46 |
3.2%
|
|
2010 | 58 |
4.1%
|
|
2011 | 45 |
3.2%
|
|
2012 | 44 |
3.1%
|
|
2013 | 42 |
3%
|
|
2014 | 63 |
4.4%
|
|
2015 | 76 |
5.4%
|
|
2016 | 71 |
5%
|
|
2017 | 52 |
3.7%
|
|
2018 | 63 |
4.4%
|
|
2019 | 53 |
3.7%
|
|
2020 | 57 |
4%
|
|
2021 | 37 |
2.6%
|
|
2022 | 18 |
1.3%
|
|
2023 | 7 |
0.5%
|
|
2024 | 1 |
0.1%
|