| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [num] year period | 43 |
|
| 2 | [noun sg] over [art] [num] year period | 26 |
|
| 3 | [noun pl] over [art] [num] year period | 19 |
|
| 4 | [noun] over the [num] year period | 11 |
|
| 5 | [noun] over [art] three year period | 10 |
|
| 6 | [noun] over [art] five year period | 9 |
|
| 7 | [noun] over [art] two year period | 6 |
|
| 8 | [noun] over [art] 20 year period | 5 |
|
| 9 | [n mass] over [art] [num] year period | 5 |
|
