Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.5%
|
1977 | 1 |
0.1%
|
|
1982 | 1 |
0.1%
|
|
1989 | 3 |
0.3%
|
|
1990 | 2 |
0.2%
|
|
1991 | 1 |
0.1%
|
|
1993 | 1 |
0.1%
|
|
1994 | 1 |
0.1%
|
|
1995 | 2 |
0.2%
|
|
1997 | 1 |
0.1%
|
|
1998 | 4 |
0.4%
|
|
1999 | 5 |
0.5%
|
|
2000 | 19 |
1.7%
|
|
2001 | 11 |
1%
|
|
2002 | 9 |
0.8%
|
|
2003 | 5 |
0.5%
|
|
2004 | 4 |
0.4%
|
|
2005 | 13 |
1.2%
|
|
2006 | 10 |
0.9%
|
|
2007 | 10 |
0.9%
|
|
2008 | 12 |
1.1%
|
|
2009 | 21 |
1.9%
|
|
2010 | 52 |
4.7%
|
|
2011 | 31 |
2.8%
|
|
2012 | 40 |
3.6%
|
|
2013 | 36 |
3.3%
|
|
2014 | 53 |
4.8%
|
|
2015 | 64 |
5.8%
|
|
2016 | 50 |
4.6%
|
|
2017 | 64 |
5.8%
|
|
2018 | 107 |
9.8%
|
|
2019 | 134 |
12.2%
|
|
2020 | 148 |
13.5%
|
|
2021 | 79 |
7.2%
|
|
2022 | 70 |
6.4%
|
|
2023 | 24 |
2.2%
|
|
2024 | 3 |
0.3%
|