| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [num] year period | 43 |
|
| 2 | [noun sg] over a [num] year period | 21 |
|
| 3 | [noun pl] over a [num] year period | 17 |
|
| 4 | [noun] over a three year period | 9 |
|
| 5 | [noun] over a five year period | 7 |
|
| 6 | [noun] over a two year period | 6 |
|
