| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | increase [prep] [art] years | 20 |
|
| 2 | increase [prep] the years | 20 |
|
| 3 | increase over [art] years | 17 |
|
| 4 | increase over [art] years | 17 |
|
| 5 | increased [prep] [art] years | 15 |
|
