| Similarity | Rank | |
|---|---|---|
| over_many_year | 0.732 | 28027 |
| for_decade | 0.655 | 4905 |
| over_several_year | 0.650 | 61781 |
| for_many_decade | 0.649 | 51204 |
| the_past_[number]_year | 0.631 | 3204 |
| for_several_decade | 0.629 | 50219 |
| over_the_last_few_decade | 0.624 | 95036 |
| over_the_past_decade | 0.621 | 13148 |
| over_the_past_two_decade | 0.621 | 41635 |
| over_a_number_of_year | 0.612 | 82216 |
| decade | 0.607 | 3279 |
| over_the_past_three_decade | 0.602 | 95559 |
| over_a_long_period_of | 0.601 | 50448 |
| over_the_last_decade | 0.601 | 16951 |
| over_the_past_few_decade | 0.599 | 77476 |
| the_last_[number]_year | 0.595 | 3311 |
| since_the_1950 | 0.590 | 59926 |
| over_the_last_century | 0.590 | 93926 |
| over_the_past_century | 0.589 | 83458 |
| over_the_last_two_decade | 0.587 | 59995 |
| since_the_1960 | 0.586 | 41789 |
| past_[number]_year | 0.584 | 68074 |
| in_recent_decade | 0.575 | 25104 |
| for_three_decade | 0.569 | 86476 |
| since_the_1970 | 0.569 | 30679 |