| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 1 |
0.2%
|
|
| 2000 | 2 |
0.3%
|
|
| 2001 | 1 |
0.2%
|
|
| 2003 | 2 |
0.3%
|
|
| 2004 | 3 |
0.5%
|
|
| 2005 | 1 |
0.2%
|
|
| 2006 | 1 |
0.2%
|
|
| 2008 | 2 |
0.3%
|
|
| 2009 | 3 |
0.5%
|
|
| 2010 | 6 |
0.9%
|
|
| 2011 | 7 |
1.1%
|
|
| 2012 | 30 |
4.5%
|
|
| 2013 | 96 |
14.4%
|
|
| 2014 | 260 |
39%
|
|
| 2015 | 248 |
37.2%
|
|
| 2016 | 3 |
0.5%
|
|
| Sysmiss | 9424 |