SN4 ""

No	Pattern	Freq
1	at [adv] [num] year	605
2	at least [adj] year	600
3	at [adv] [adj] years	571
4	at [adv] two year	121
5	at [adv] two year	121
6	at [adv] three year	68
7	at [adv] three year	68
8	at [adv] five year	65
9	at [adv] five year	65
10	at [adv] [adj] year	59
11	at [adv] ten year	32
12	at [adv] ten year	32
13	at [adv] one year	32
14	at [adv] one year	32
15	at [adv] [det] year	22
16	at [adv] four year	19
17	at [adv] four year	19
18	at [adv] another year	18
19	at [adv] another year	18
20	at [adv] twenty year	17
21	at [adv] twenty year	17
22	at [adv] 30 year	16
23	at [adv] 30 year	16
24	at [adv] 10 year	15
25	at [adv] 10 year	15
26	at [adv] 20 year	13
27	at [adv] 20 year	13
28	at [adv] fifteen year	12
29	at around [adj] year	12
30	at [adv] fifteen year	12