Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Never regiestered (spontaneous) | 0 |
0%
|
1959 | 1 |
0.3%
|
|
1962 | 1 |
0.3%
|
|
1974 | 1 |
0.3%
|
|
1981 | 1 |
0.3%
|
|
1987 | 1 |
0.3%
|
|
1989 | 2 |
0.5%
|
|
1990 | 2 |
0.5%
|
|
1991 | 2 |
0.5%
|
|
1993 | 2 |
0.5%
|
|
1994 | 1 |
0.3%
|
|
1995 | 2 |
0.5%
|
|
1996 | 1 |
0.3%
|
|
1997 | 3 |
0.8%
|
|
1998 | 2 |
0.5%
|
|
1999 | 3 |
0.8%
|
|
2000 | 10 |
2.6%
|
|
2001 | 3 |
0.8%
|
|
2002 | 5 |
1.3%
|
|
2003 | 6 |
1.5%
|
|
2004 | 10 |
2.6%
|
|
2005 | 13 |
3.3%
|
|
2006 | 8 |
2%
|
|
2007 | 8 |
2%
|
|
2008 | 9 |
2.3%
|
|
2009 | 11 |
2.8%
|
|
2010 | 11 |
2.8%
|
|
2011 | 10 |
2.6%
|
|
2012 | 11 |
2.8%
|
|
2013 | 19 |
4.8%
|
|
2014 | 24 |
6.1%
|
|
2015 | 27 |
6.9%
|
|
2016 | 30 |
7.7%
|
|
2017 | 18 |
4.6%
|
|
2018 | 33 |
8.4%
|
|
2019 | 19 |
4.8%
|
|
2020 | 34 |
8.7%
|
|
2021 | 19 |
4.8%
|
|
2022 | 23 |
5.9%
|
|
2023 | 4 |
1%
|