| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [num] year period | 43 |
|
| 2 | [noun sg] [prep] a [num] year period | 34 |
|
| 3 | [noun sg] [prep] a [num] year period | 34 |
|
| 4 | [noun sg] over a [num] [noun sg] period | 33 |
|
| 5 | [noun sg] over a [num] [noun] period | 33 |
|
| 6 | [noun sg] over [art] [num] year period | 26 |
|
| 7 | [noun sg] over [art] [num] year period | 26 |
|
| 8 | [noun sg] over a [num] year [noun sg] | 23 |
|
| 9 | [noun sg] over a [num] year [noun] | 23 |
|
| 10 | [noun sg] over a [num] year period | 21 |
|
| 11 | [noun sg] over a [num] year period | 21 |
|
| 12 | [noun sg] over a [num] year period | 21 |
|
| 13 | [noun sg] over a [adj] year period | 21 |
|
| 14 | [noun sg] over a [num] year period | 21 |
|
