SN4 ""

No	Pattern	Freq
1	at the [adj -er] [noun sg]	328
2	at the lower [noun]	169
3	at the [adj -er] end	109
4	at the [adj -er] end	109
5	at the [adj -er] [noun pl]	102
6	at the higher [noun]	81
7	at the [adj -er] level	70
8	at the [adj -er] levels	40
9	at the [adj -er] level	30
10	at the [adj -er] rate	29
11	at the [adj -er] rate	29
12	at the earlier [noun]	21
13	at the smaller [noun]	18
14	at the later [noun]	17
15	at the younger [noun]	16
16	at the wider [noun]	15
17	at the [adj -er] man	12
18	at the [adj -er] man	12
19	at the larger [noun]	12
20	at the [adj -er] edge	9
21	at the [adj -er] [noun prp]	9
22	at the older [noun]	9
23	at the [adj -er] stage	8
24	at the [adj -er] edge	8
25	at the [adj -er] date	7
26	at the [adj -er] date	7
27	at the bigger [noun]	7
28	at the longer [noun]	6
29	at the cheaper [noun]	6
30	at the [adj -er] part	5