| Valor | Categoría | Casos | |
|---|---|---|---|
| 1998 | 4 |
1.3%
|
|
| 2006 | 2 |
0.6%
|
|
| 2007 | 5 |
1.6%
|
|
| 2008 | 1 |
0.3%
|
|
| 2009 | 4 |
1.3%
|
|
| 2010 | 13 |
4.1%
|
|
| 2011 | 53 |
16.6%
|
|
| 2012 | 234 |
73.4%
|
|
| 2013 | 1 |
0.3%
|
|
| 9999 | 2 |
0.6%
|