| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.1%
|
|
| 2002 | 1 |
0.1%
|
|
| 2003 | 1 |
0.1%
|
|
| 2006 | 5 |
0.4%
|
|
| 2007 | 2 |
0.1%
|
|
| 2008 | 3 |
0.2%
|
|
| 2009 | 1 |
0.1%
|
|
| 2010 | 2 |
0.1%
|
|
| 2011 | 4 |
0.3%
|
|
| 2012 | 816 |
60.8%
|
|
| 2013 | 228 |
17%
|
|
| 2014 | 42 |
3.1%
|
|
| 2015 | 34 |
2.5%
|
|
| 2016 | 65 |
4.8%
|
|
| 2017 | 63 |
4.7%
|
|
| 2018 | 50 |
3.7%
|
|
| 2019 | 24 |
1.8%
|