| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 1 |
0.1%
|
|
| 2007 | 1 |
0.1%
|
|
| 2009 | 201 |
11.7%
|
|
| 2010 | 223 |
12.9%
|
|
| 2011 | 805 |
46.7%
|
|
| 2012 | 97 |
5.6%
|
|
| 2013 | 68 |
3.9%
|
|
| 2014 | 12 |
0.7%
|
|
| 2015 | 35 |
2%
|
|
| 2016 | 18 |
1%
|
|
| 2017 | 19 |
1.1%
|
|
| 2018 | 1 |
0.1%
|
|
| 2019 | 11 |
0.6%
|
|
| Missing value | 231 |
13.4%
|