| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.1%
|
| 1990 | 1 |
0.1%
|
|
| 1994 | 1 |
0.1%
|
|
| 1995 | 1 |
0.1%
|
|
| 2000 | 22 |
1.3%
|
|
| 2001 | 1 |
0.1%
|
|
| 2003 | 1 |
0.1%
|
|
| 2004 | 6 |
0.3%
|
|
| 2005 | 5 |
0.3%
|
|
| 2006 | 2 |
0.1%
|
|
| 2007 | 6 |
0.3%
|
|
| 2008 | 1 |
0.1%
|
|
| 2009 | 9 |
0.5%
|
|
| 2010 | 80 |
4.5%
|
|
| 2011 | 5 |
0.3%
|
|
| 2012 | 20 |
1.1%
|
|
| 2013 | 25 |
1.4%
|
|
| 2014 | 47 |
2.7%
|
|
| 2015 | 154 |
8.8%
|
|
| 2016 | 68 |
3.9%
|
|
| 2017 | 115 |
6.5%
|
|
| 2018 | 193 |
11%
|
|
| 2019 | 179 |
10.2%
|
|
| 2020 | 340 |
19.3%
|
|
| 2021 | 182 |
10.3%
|
|
| 2022 | 198 |
11.3%
|
|
| 2023 | 87 |
4.9%
|
|
| 2024 | 9 |
0.5%
|