SN4 ""

No	Pattern	Freq
1	[noun] over the past [num] years	382
2	[noun sg] over the [adj] [num] years	235
3	[noun pl] over the [adj] [num] years	133
4	[noun] over the [adj] two years	59
5	[noun prp] over the [adj] [num] years	50
6	[noun] over the [adj] five years	48
7	[noun] over the [adj] three years	38
8	[noun] over the previous [num] years	32
9	[noun] over the [adj] 20 years	30
10	[noun] over the [adj] 30 years	27
11	[noun] over the [adj] ten years	25
12	[noun] over the [adj] 10 years	22
13	[n mass] over the [adj] [num] years	18
14	[noun] over the [adj] four years	16
15	[noun] over the [adj] 15 years	15
16	[noun] over the following [num] years	13
17	[noun] over the [adj] six years	12
18	[noun] over the [adj] twenty years	10
19	[noun] over the [adj] hundred years	9
20	[noun] over the [adj] 12 years	9
21	[noun] over the [adj] 40 years	9
22	[noun] over the [adj] thirty years	8
23	[noun] over the [adj] 50 years	8
24	britain over the [adj] [num] years	6
25	[noun] over the [adj] nine years	6
26	country over the [adj] [num] years	6
27	britain over the [adj] [num] years	6
28	rate over the [adj] [num] years	5
29	[noun] over the [adj] 200 years	5
30	time over the [adj] [num] years	5