| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for the last two years | 72 |
|
| 2 | for the last ten years | 54 |
|
| 3 | for the last three years | 52 |
|
| 4 | for the last five years | 41 |
|
| 5 | for the last four years | 30 |
|
| 6 | for the last twenty years | 26 |
|
| 7 | for the last 20 years | 21 |
|
| 8 | for the last 10 years | 16 |
|
| 9 | for the last seven years | 12 |
|
| 10 | for the last six years | 12 |
|
| 11 | for the last thirty years | 9 |
|
| 12 | for the last fourteen years | 9 |
|
| 13 | for the last eight years | 9 |
|
| 14 | for the last forty years | 9 |
|
| 15 | for the last 30 years | 8 |
|
| 16 | for the last 13 years | 7 |
|
| 17 | for the last twelve years | 6 |
|
| 18 | for the last fifty years | 6 |
|
| 19 | for the last 15 years | 6 |
|
| 20 | for the last 14 years | 6 |
|
| 21 | for the last sixteen years | 5 |
|
| 22 | for the last nine years | 5 |
|
| 23 | for the last fifteen years | 5 |
|
