| Value | Category | Cases | |
|---|---|---|---|
| 1 | Before 1984 | 707 |
6.2%
|
| 2 | 1985-1989 | 670 |
5.9%
|
| 3 | 1990-1994 | 1085 |
9.6%
|
| 4 | 1995-1999 | 1383 |
12.2%
|
| 5 | 2000-2004 | 2535 |
22.3%
|
| 6 | 2009-2009 | 4057 |
35.7%
|
| 7 | 2010 to 2012 | 854 |
7.5%
|
| 8 | Not specifies | 59 |
0.5%
|
| Sysmiss | 5995 |