| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] [prep] the [num ord] year | 5 |
|
| 2 | at least [prep] the [num ord] year | 5 |
|
| 3 | at least [prep] the [num ord] year | 5 |
|
| 4 | at [adv] [prep] the [num ord] year | 5 |
|
