| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over the previous [num] years | 18 |
|
| 2 | [noun pl] over the previous [num] years | 10 |
|
| 3 | [noun] over the previous three years | 7 |
|
| 4 | [noun] over the previous five years | 5 |
|
