Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.7%
|
-7 | Never regiestered (spontaneous) | 0 |
0%
|
1947 | 1 |
0.1%
|
|
1957 | 1 |
0.1%
|
|
1960 | 1 |
0.1%
|
|
1962 | 3 |
0.4%
|
|
1965 | 1 |
0.1%
|
|
1968 | 2 |
0.3%
|
|
1969 | 1 |
0.1%
|
|
1970 | 1 |
0.1%
|
|
1972 | 1 |
0.1%
|
|
1987 | 1 |
0.1%
|
|
1989 | 2 |
0.3%
|
|
1990 | 21 |
3%
|
|
1991 | 27 |
3.8%
|
|
1992 | 14 |
2%
|
|
1993 | 23 |
3.2%
|
|
1994 | 23 |
3.2%
|
|
1995 | 13 |
1.8%
|
|
1996 | 19 |
2.7%
|
|
1997 | 27 |
3.8%
|
|
1998 | 30 |
4.2%
|
|
1999 | 25 |
3.5%
|
|
2000 | 19 |
2.7%
|
|
2001 | 22 |
3.1%
|
|
2002 | 21 |
3%
|
|
2003 | 27 |
3.8%
|
|
2004 | 29 |
4.1%
|
|
2005 | 41 |
5.8%
|
|
2006 | 22 |
3.1%
|
|
2007 | 35 |
4.9%
|
|
2008 | 23 |
3.2%
|
|
2009 | 21 |
3%
|
|
2010 | 21 |
3%
|
|
2011 | 15 |
2.1%
|
|
2012 | 17 |
2.4%
|
|
2013 | 25 |
3.5%
|
|
2014 | 19 |
2.7%
|
|
2015 | 20 |
2.8%
|
|
2016 | 21 |
3%
|
|
2017 | 18 |
2.5%
|
|
2018 | 20 |
2.8%
|
|
2019 | 17 |
2.4%
|
|
2020 | 12 |
1.7%
|
|
2021 | 3 |
0.4%
|