| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | about [num] per [unc] of | 655 |
|
| 2 | about [adj] per [unc] of | 655 |
|
| 3 | [adv] 30 per [unc] of | 113 |
|
| 4 | [adv] 30 per [unc] of | 112 |
|
| 5 | about 30 per [unc] [prep] | 41 |
|
| 6 | about 30 [unc] [unc] of | 37 |
|
| 7 | about 30 per [unc] of | 37 |
|
| 8 | about 30 per [unc] of | 37 |
|
