Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 27 |
1.9%
|
1964 | 1 |
0.1%
|
|
1970 | 1 |
0.1%
|
|
1972 | 1 |
0.1%
|
|
1978 | 1 |
0.1%
|
|
1979 | 1 |
0.1%
|
|
1981 | 4 |
0.3%
|
|
1982 | 2 |
0.1%
|
|
1983 | 2 |
0.1%
|
|
1986 | 2 |
0.1%
|
|
1987 | 1 |
0.1%
|
|
1988 | 3 |
0.2%
|
|
1989 | 2 |
0.1%
|
|
1990 | 10 |
0.7%
|
|
1991 | 2 |
0.1%
|
|
1993 | 2 |
0.1%
|
|
1995 | 2 |
0.1%
|
|
1996 | 3 |
0.2%
|
|
1997 | 5 |
0.4%
|
|
1998 | 6 |
0.4%
|
|
1999 | 7 |
0.5%
|
|
2000 | 41 |
2.9%
|
|
2001 | 9 |
0.6%
|
|
2002 | 11 |
0.8%
|
|
2003 | 11 |
0.8%
|
|
2004 | 11 |
0.8%
|
|
2005 | 21 |
1.5%
|
|
2006 | 14 |
1%
|
|
2007 | 18 |
1.3%
|
|
2008 | 16 |
1.1%
|
|
2009 | 18 |
1.3%
|
|
2010 | 40 |
2.8%
|
|
2011 | 18 |
1.3%
|
|
2012 | 43 |
3%
|
|
2013 | 24 |
1.7%
|
|
2014 | 39 |
2.8%
|
|
2015 | 93 |
6.6%
|
|
2016 | 50 |
3.5%
|
|
2017 | 84 |
6%
|
|
2018 | 166 |
11.8%
|
|
2019 | 197 |
14%
|
|
2020 | 143 |
10.1%
|
|
2021 | 148 |
10.5%
|
|
2022 | 110 |
7.8%
|