| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of about [num] per [no cls] | 94 |
|
| 2 | of about [num] per cent | 94 |
|
| 3 | of about [num] per [no cls] | 94 |
|
| 4 | of about 30 per [no cls] | 10 |
|
| 5 | of about 5 per [no cls] | 10 |
|
| 6 | of about 50 per [no cls] | 5 |
|
| 7 | of about 10 per [no cls] | 5 |
|
| 8 | of about 20 per [no cls] | 5 |
|
