| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Zero | 917 |
10.8%
|
| 2 | 2. Once | 1435 |
16.8%
|
| 3 | 3. Twice | 1718 |
20.2%
|
| 4 | 4. Thrice | 1085 |
12.7%
|
| 5 | 5. Four times | 904 |
10.6%
|
| 6 | 6. Five times | 437 |
5.1%
|
| 7 | 7. More than five times | 2023 |
23.7%
|
| Sysmiss | 238561 |