| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never repeated | 4911 |
67.5%
|
| 2 | Once | 1902 |
26.1%
|
| 3 | Twice | 308 |
4.2%
|
| 4 | Three or more | 149 |
2%
|
| 5 | Missing | 8 |
0.1%
|