| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 1 |
2%
|
|
| 2003 | 1 |
2%
|
|
| 2006 | 3 |
6%
|
|
| 2007 | 4 |
8%
|
|
| 2008 | 4 |
8%
|
|
| 2009 | 5 |
10%
|
|
| 2010 | 6 |
12%
|
|
| 2011 | 4 |
8%
|
|
| 2012 | 6 |
12%
|
|
| 2013 | 7 |
14%
|
|
| 2014 | 5 |
10%
|
|
| 2015 | 4 |
8%
|
|
| Sysmiss | 12357 |