| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] [prep] a five-year period | 5 |
|
| 2 | [num] over a five-year period | 5 |
|
| 3 | [num] over a five-year period | 5 |
|
| 4 | [num] [prep] a five-year period | 5 |
|
| 5 | [num] [prep] a five-year period | 5 |
|
