SN4 ""

No	Pattern	Freq
1	at [adv] [n mass] [prep]	365
2	at [adv] [n mass] [prep]	362
3	at least [n mass] [prep]	215
4	at least [n mass] [prep]	215
5	at [adv] [n mass] of	113
6	at [adv] [n mass] per	54
7	at around [n mass] [prep]	53
8	at around [n mass] [prep]	53
9	at [adv] [n mass] for	52
10	at [adv] [n mass] in	50
11	at about [n mass] [prep]	43
12	at about [n mass] [prep]	43
13	at [adv] [n mass] to	24
14	at [adv] 50% [prep]	13
15	at only [n mass] [prep]	13
16	at only [n mass] [prep]	13
17	at just [n mass] [prep]	11
18	at just [n mass] [prep]	11
19	at [adv] 20% [prep]	10
20	at [adv] 40% [prep]	10
21	at [adv] [n mass] above	9
22	at [adv] 25% [prep]	9
23	at [adv] [n mass] on	9
24	at [adv] [n mass] from	8
25	at [adv] 5% [prep]	7
26	at [adv] 90% [prep]	7
27	at [adv] [n mass] at	6
28	at [adv] 10% [prep]	6
29	at [adv] 80% [prep]	6
30	at [adv] 75% [prep]	6