| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 95 |
1.2%
|
|
| 2003 | 309 |
4%
|
|
| 2004 | 2227 |
29%
|
|
| 2005 | 1290 |
16.8%
|
|
| 2006 | 227 |
3%
|
|
| 2007 | 2095 |
27.3%
|
|
| 2008 | 1294 |
16.8%
|
|
| 2009 | 151 |
2%
|
|
| 9999 | 9999. Missing | 0 |
0%
|
| Sysmiss | 21197 |