| Value | Category | Cases | |
|---|---|---|---|
| 1 | 546 |
19.1%
|
|
| 2 | years | 1629 |
56.9%
|
| 3 | 499 |
17.4%
|
|
| 4 | 84 |
2.9%
|
|
| 5 | 96 |
3.4%
|
|
| 6 | 6 |
0.2%
|
|
| 7 | 1 |
0%
|
|
| Sysmiss | 22284 |