Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.6%
|
-7 | Never regiestered (spontaneous) | 0 |
0%
|
1922 | 1 |
0.3%
|
|
1923 | 1 |
0.3%
|
|
1947 | 1 |
0.3%
|
|
1948 | 1 |
0.3%
|
|
1952 | 1 |
0.3%
|
|
1953 | 1 |
0.3%
|
|
1966 | 1 |
0.3%
|
|
1973 | 1 |
0.3%
|
|
1975 | 2 |
0.6%
|
|
1982 | 1 |
0.3%
|
|
1983 | 3 |
0.8%
|
|
1985 | 1 |
0.3%
|
|
1989 | 4 |
1.1%
|
|
1990 | 15 |
4.2%
|
|
1991 | 22 |
6.2%
|
|
1992 | 16 |
4.5%
|
|
1993 | 18 |
5.1%
|
|
1994 | 13 |
3.7%
|
|
1995 | 16 |
4.5%
|
|
1996 | 7 |
2%
|
|
1997 | 8 |
2.3%
|
|
1998 | 12 |
3.4%
|
|
1999 | 20 |
5.6%
|
|
2000 | 12 |
3.4%
|
|
2001 | 14 |
4%
|
|
2002 | 10 |
2.8%
|
|
2003 | 16 |
4.5%
|
|
2004 | 10 |
2.8%
|
|
2005 | 9 |
2.5%
|
|
2006 | 18 |
5.1%
|
|
2007 | 10 |
2.8%
|
|
2008 | 12 |
3.4%
|
|
2009 | 8 |
2.3%
|
|
2010 | 10 |
2.8%
|
|
2011 | 7 |
2%
|
|
2012 | 9 |
2.5%
|
|
2013 | 5 |
1.4%
|
|
2014 | 13 |
3.7%
|
|
2015 | 6 |
1.7%
|
|
2016 | 3 |
0.8%
|
|
2017 | 7 |
2%
|
|
2018 | 1 |
0.3%
|
|
2019 | 3 |
0.8%
|
|
2020 | 2 |
0.6%
|
|
2021 | 1 |
0.3%
|