| Value | Category | Cases | |
|---|---|---|---|
| 1992 | 1 |
0%
|
|
| 2002 | 1 |
0%
|
|
| 2003 | 1 |
0%
|
|
| 2004 | 1 |
0%
|
|
| 2005 | 1 |
0%
|
|
| 2007 | 210 |
2.8%
|
|
| 2008 | 973 |
12.8%
|
|
| 2009 | 1521 |
20.1%
|
|
| 2010 | 1923 |
25.3%
|
|
| 2011 | 1564 |
20.6%
|
|
| 2012 | 1390 |
18.3%
|
|
| Sysmiss | 87919 |