| قيمة | فئة | حالات | |
|---|---|---|---|
| 1 | قبل عام 1960 | 8 |
3%
|
| 2 | 1960-1969 | 8 |
3%
|
| 3 | 1970-1979 | 15 |
5.5%
|
| 4 | 1980-1989 | 41 |
15.1%
|
| 5 | 1990-1999 | 43 |
15.9%
|
| 6 | 2000-2009 | 102 |
37.6%
|
| 7 | 2010 فاكثر | 54 |
19.9%
|