| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over the past [num] years | 781 |
|
| 2 | over the past few years | 189 |
|
| 3 | over the past few years | 189 |
|
| 4 | over the past [det] years | 189 |
|
| 5 | over the past two years | 113 |
|
| 6 | over the past two years | 113 |
|
| 7 | over the past five years | 77 |
|
| 8 | over the past five years | 77 |
|
| 9 | over the past three years | 61 |
|
| 10 | over the past three years | 61 |
|
| 11 | over the past ten years | 55 |
|
| 12 | over the past ten years | 55 |
|
| 13 | over the past 20 years | 52 |
|
| 14 | over the past 20 years | 52 |
|
| 15 | over the past 10 years | 52 |
|
| 16 | over the past 10 years | 52 |
|
| 17 | over the past 30 years | 42 |
|
| 18 | over the past 30 years | 42 |
|
| 19 | over the past four years | 33 |
|
| 20 | over the past four years | 33 |
|
| 21 | over the past 15 years | 26 |
|
| 22 | over the past 15 years | 26 |
|
| 23 | over the past twenty years | 21 |
|
| 24 | over the past twenty years | 21 |
|
| 25 | over the past 12 years | 20 |
|
| 26 | over the past 12 years | 20 |
|
| 27 | over the past 50 years | 18 |
|
| 28 | over the past 50 years | 18 |
|
| 29 | over the past 40 years | 16 |
|
| 30 | over the past 40 years | 16 |
|
