| Valor | Categoría | Casos | |
|---|---|---|---|
| 2010 | 12 |
0%
|
|
| 2011 | 1091 |
0.4%
|
|
| 2012 | 23953 |
8.1%
|
|
| 2013 | 270734 |
91.5%
|
|
| Sysmiss | 10792 |