| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 2 |
0.1%
|
|
| 2001 | 1 |
0%
|
|
| 2002 | 1 |
0%
|
|
| 2004 | 1 |
0%
|
|
| 2005 | 1 |
0%
|
|
| 2006 | 3 |
0.1%
|
|
| 2007 | 5 |
0.2%
|
|
| 2008 | 7 |
0.3%
|
|
| 2009 | 10 |
0.5%
|
|
| 2010 | 27 |
1.3%
|
|
| 2011 | 68 |
3.3%
|
|
| 2012 | 160 |
7.7%
|
|
| 2013 | 804 |
38.8%
|
|
| 2014 | 982 |
47.4%
|