| Value | Category | Cases | |
|---|---|---|---|
| 2 | 3 |
5.6%
|
|
| 2002 | 1 |
1.9%
|
|
| 2003 | 1 |
1.9%
|
|
| 2005 | 2 |
3.7%
|
|
| 2006 | 1 |
1.9%
|
|
| 2007 | 2 |
3.7%
|
|
| 2008 | 8 |
14.8%
|
|
| 2009 | 36 |
66.7%
|
|
| 9999 | Unknown | 0 |
0%
|
| Sysmiss | 8521 |