| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least 20% | 14 |
|
| 2 | [prep] least 20% | 14 |
|
| 3 | at least 20% | 14 |
|
| 4 | [prep] least 20% | 14 |
|
| 5 | least 20% [prep] | 7 |
|
| 6 | least 20% [prep] | 7 |
|
| 7 | least 20% of | 5 |
|
| 8 | least 20% of | 5 |
|
