| قيمة | فئة | حالات | |
|---|---|---|---|
| 1 | قبل 1919 | 224 |
7.5%
|
| 2 | 1919-1948 | 345 |
11.5%
|
| 3 | 1949-1967 | 609 |
20.3%
|
| 4 | 1968-1987 | 504 |
16.8%
|
| 5 | 1988-1993 | 323 |
10.8%
|
| 6 | 1994-2000 | 381 |
12.7%
|
| 7 | 2001-2002 | 73 |
2.4%
|
| 8 | لا أعرف | 0 |
0%
|
| 9 | 543 |
18.1%
|