| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | under 30 per [unc] | 9 |
|
| 2 | under 30 [unc] cent | 9 |
|
| 3 | under 30 [no cls] [unc] | 9 |
|
| 4 | under 30 [unc] cent | 9 |
|
| 5 | under 30 [unc] [no cls] | 9 |
|
| 6 | under 30 per [unc] | 9 |
|
