SN4 ""

No	Pattern	Freq
1	[verb] [adv] in [adj] years	138
2	[vb pp] [adv] in [adj] years	109
3	[adv] [adv] in [adj] years	41
4	[adv] [adv] in [adj] years	35
5	increase [adv] in [adj] years	17
6	change [adv] in [adj] years	16
7	[noun] [adv] in [adj] years	16
8	changed [adv] in [adj] years	16
9	[conj] [adv] in [adj] years	16
10	increased [adv] in [adj] years	15
11	[be] [adv] in [adj] years	13
12	be [adv] in [adj] years	13
13	[coord] [adv] in [adj] years	11
14	rise [adv] in [adj] years	11
15	[noun sg] [adv] in [adj] years	11
16	grown [adv] in [adj] years	10
17	grow [adv] in [adj] years	10
18	risen [adv] in [adj] years	9
19	so [adv] in [adj] years	8
20	so [adv] in [adj] years	8
21	[pron] [adv] in [adj] years	8
22	[vb past] [adv] in [adj] years	8
23	[v-ing] [adv] in [adj] years	8
24	declined [adv] in [adj] years	7
25	very [adv] in [adj] years	7
26	[is] [adv] in [adj] years	7
27	decline [adv] in [adj] years	7
28	very [adv] in [adj] years	7
29	[art] [adv] in [adj] years	6
30	and [adv] in [adj] years	6