| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of 10 per [unc] | 123 |
|
| 2 | about 10 per [unc] | 85 |
|
| 3 | of about 10 [unc] | 6 |
|
| 4 | of about 10 per | 5 |
|
