| Value | Category | Cases | |
|---|---|---|---|
| 1960 | [1960,1980) | 41 |
3.6%
|
| 1980 | [1980,1990) | 66 |
5.8%
|
| 1990 | [1990,2000) | 325 |
28.5%
|
| 2000 | [2000,2010) | 498 |
43.7%
|
| 2010 | [2010,2020) | 209 |
18.3%
|
| Sysmiss | 99 |