Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
2%
|
-7 | Never regiestered (spontaneous) | 0 |
0%
|
1924 | 1 |
0.7%
|
|
1935 | 1 |
0.7%
|
|
1948 | 1 |
0.7%
|
|
1956 | 1 |
0.7%
|
|
1961 | 1 |
0.7%
|
|
1966 | 1 |
0.7%
|
|
1968 | 1 |
0.7%
|
|
1969 | 1 |
0.7%
|
|
1978 | 1 |
0.7%
|
|
1979 | 1 |
0.7%
|
|
1980 | 1 |
0.7%
|
|
1983 | 1 |
0.7%
|
|
1989 | 1 |
0.7%
|
|
1991 | 2 |
1.3%
|
|
1993 | 2 |
1.3%
|
|
1994 | 1 |
0.7%
|
|
1995 | 2 |
1.3%
|
|
1998 | 2 |
1.3%
|
|
1999 | 4 |
2.7%
|
|
2000 | 3 |
2%
|
|
2001 | 2 |
1.3%
|
|
2002 | 2 |
1.3%
|
|
2003 | 2 |
1.3%
|
|
2005 | 6 |
4%
|
|
2006 | 4 |
2.7%
|
|
2007 | 6 |
4%
|
|
2008 | 7 |
4.7%
|
|
2009 | 4 |
2.7%
|
|
2010 | 3 |
2%
|
|
2011 | 1 |
0.7%
|
|
2012 | 11 |
7.4%
|
|
2013 | 3 |
2%
|
|
2014 | 5 |
3.4%
|
|
2015 | 13 |
8.7%
|
|
2016 | 11 |
7.4%
|
|
2017 | 17 |
11.4%
|
|
2018 | 20 |
13.4%
|