| Value | Category | Cases | |
|---|---|---|---|
| 1 | regular | 340 |
22.8%
|
| 2 | fluctuating | 139 |
9.3%
|
| 3 | very irregular | 33 |
2.2%
|
| 55 | not applicable | 978 |
65.6%
|
| Sysmiss | 31 |