| Value | Category | Cases | |
|---|---|---|---|
| 1960 | [1960,1980) | 40 |
2.7%
|
| 1980 | [1980,1990) | 221 |
14.8%
|
| 1990 | [1990,2000) | 353 |
23.6%
|
| 2000 | [2000,2010) | 552 |
36.9%
|
| 2010 | [2010,2020) | 328 |
22%
|
| Sysmiss | 2931 |