| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at [adj] exchange rate | 8 |
|
| 2 | at [art] [adj] exchange rate | 25 |
|
| 3 | at [art] [adj] exchange rate | 25 |
|
| 4 | at the [adj] exchange rate | 19 |
|
| 5 | at the [adj] exchange rate | 19 |
|
| 6 | at a [adj] exchange rate | 6 |
|
| 7 | at a [adj] exchange rate | 5 |
|
