| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Before 1919 | 164 | 142 |
5.7%
|
| 2 | 1919-1948 | 124 | 113 |
4.5%
|
| 3 | 1949-1967 | 331 | 340 |
13.7%
|
| 4 | 1968-1987 | 656 | 700 |
28.2%
|
| 5 | 1988-1993 | 466 | 471 |
18.9%
|
| 6 | 1994-2000 | 471 | 467 |
18.8%
|
| 7 | 2001-2005 | 176 | 164 |
6.6%
|
| 8 | Don't know | 0 | 0 |
0%
|
| 9 | 97 | 88 |
3.5%
|