Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 41 |
4.1%
|
1954 | 1 |
0.1%
|
|
1960 | 3 |
0.3%
|
|
1965 | 1 |
0.1%
|
|
1968 | 1 |
0.1%
|
|
1970 | 3 |
0.3%
|
|
1972 | 2 |
0.2%
|
|
1975 | 1 |
0.1%
|
|
1980 | 17 |
1.7%
|
|
1982 | 3 |
0.3%
|
|
1984 | 3 |
0.3%
|
|
1985 | 6 |
0.6%
|
|
1988 | 3 |
0.3%
|
|
1989 | 2 |
0.2%
|
|
1990 | 23 |
2.3%
|
|
1991 | 1 |
0.1%
|
|
1992 | 4 |
0.4%
|
|
1993 | 4 |
0.4%
|
|
1994 | 2 |
0.2%
|
|
1995 | 14 |
1.4%
|
|
1996 | 2 |
0.2%
|
|
1997 | 4 |
0.4%
|
|
1998 | 12 |
1.2%
|
|
1999 | 10 |
1%
|
|
2000 | 47 |
4.7%
|
|
2001 | 26 |
2.6%
|
|
2002 | 14 |
1.4%
|
|
2003 | 8 |
0.8%
|
|
2004 | 14 |
1.4%
|
|
2005 | 37 |
3.7%
|
|
2006 | 19 |
1.9%
|
|
2007 | 21 |
2.1%
|
|
2008 | 46 |
4.6%
|
|
2009 | 40 |
4%
|
|
2010 | 72 |
7.2%
|
|
2011 | 54 |
5.4%
|
|
2012 | 74 |
7.4%
|
|
2013 | 46 |
4.6%
|
|
2014 | 64 |
6.4%
|
|
2015 | 98 |
9.8%
|
|
2016 | 60 |
6%
|
|
2017 | 37 |
3.7%
|
|
2018 | 50 |
5%
|
|
2019 | 7 |
0.7%
|
|
2020 | 1 |
0.1%
|