| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] rate of [noun] | 1890 |
|
| 2 | rate of [noun] [prep] | 1206 |
|
| 3 | [art] rate [noun] [prep] | 28 |
|
| 4 | [art] rate of [prep] | 21 |
|
| 5 | [art] of [noun] [prep] | 10 |
|
