| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [art] [adj] rate | 31 |
|
| 2 | [vb past] at an [adj] rate | 23 |
|
| 3 | [vb past] at [art] annual rate | 11 |
|
| 4 | [vb past] at [art] annual rate | 11 |
|
| 5 | [vb past] at a [adj] rate | 10 |
|
| 6 | grew at [art] [adj] rate | 8 |
|
