| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | rate [was/were] [adv] [num] [no cls] [no cls] | 12 |
|
| 2 | rate [was/were] [adv] [num] per [no cls] | 12 |
|
| 3 | rate [was/were] [adv] [num] per [no cls] | 12 |
|
| 4 | rate [was/were] [adv] [num] [unc] cent | 12 |
|
| 5 | rate [was/were] [adv] [num] [unc] [no cls] | 9 |
|
| 6 | rate was [adv] [num] [unc] [no cls] | 8 |
|
