| Value | Category | Cases | |
|---|---|---|---|
| 1995 | 1 |
0.3%
|
|
| 1999 | 1 |
0.3%
|
|
| 2001 | 2 |
0.6%
|
|
| 2002 | 4 |
1.2%
|
|
| 2003 | 3 |
0.9%
|
|
| 2004 | 1 |
0.3%
|
|
| 2005 | 6 |
1.9%
|
|
| 2006 | 10 |
3.1%
|
|
| 2007 | 5 |
1.6%
|
|
| 2008 | 14 |
4.4%
|
|
| 2009 | 70 |
21.8%
|
|
| 2010 | 124 |
38.6%
|
|
| 2011 | 65 |
20.2%
|
|
| 8888 | 15 |
4.7%
|
|
| 9999 | No sabe | 0 |
0%
|
| Sysmiss | 5 |