| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No interruption | 183 |
5.1%
|
| 2 | 2. Only once | 138 |
3.9%
|
| 3 | 3. Twice | 278 |
7.8%
|
| 4 | 4. Three Times | 507 |
14.2%
|
| 5 | 5. More than 3 times | 2461 |
69%
|
| Sysmiss | 3203 |