| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] rate [prep] over [num] per | 10 |
|
| 2 | [noun] rate [prep] over [num] per | 10 |
|
| 3 | rate [prep] over [num] per cent | 13 |
|
| 4 | rate [prep] over [num] per [unc] | 13 |
|
| 5 | rate [prep] over [num] per cent | 13 |
|
| 6 | rate [prep] over [num] per [no cls] | 13 |
|
