SimilarityRank
ten_year_ago 0.825 32649
[number]_year_ago 0.779 3595
thirty_year_ago 0.763 57364
a_decade_ago 0.742 23265
two_decade_ago 0.736 95707
five_year_ago 0.734 21349
forty_year_ago 0.730 84520
seven_year_ago 0.687 57324
fifty_year_ago 0.687 58784
eight_year_ago 0.685 65575
[number]_year_earlier 0.684 77234
decade_ago 0.680 32413
year_ago 0.680 6831
six_year_ago 0.675 44920
many_year_ago 0.671 15620
almost_[number]_year_ago 0.665 51448
more_than_[number]_year_ago 0.664 24310
over_[number]_year_ago 0.663 22327
some_[number]_year_ago 0.661 44893
four_year_ago 0.657 22498
nearly_[number]_year_ago 0.652 48159
three_year_ago 0.652 17729
over_a_decade_ago 0.647 94008
in_the_early_1990 0.645 17920
just_a_few_year_ago 0.634 72113